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iTunes Artwork Grabber or Album Art Downloader

Character / Word Counters

CharacterCountOnline, CharacterCounter, CharacterCounterTool, OnlineEditText, LetterCount, TheWordCounter, CharCounter, CharacterCounter, WordCounter, CharacterCounter

Clipboard Managers

ArsClip, Ditto Clipboard Manager, clipboardmemo, CopyQ, Free Clipboard Viewer, Clip Angel, xClipper, MultiClipBoardSlots, Clipboard Canvas, Xtra Clipboard, Control V

Code Editors

SpaceVim, Onivun, vimrc, NeoVim / Frontend, Vim, Emacs / Docs, Lite XL, Kakoune, Brackets, Micro Editor, BlueFish, KomodoEdit, TextAdept, SpaceMacs, Notepad2, Sublime Text, Atom, CudaText / Git, Light Table, 4coder, lapce

Online Code Editors

JDFiddle, W3Schools, CollabEdit, Portacode, IDE One, SoloLearn / Playground, JSFiddle, PlayCode

####Color Palette Generators

Colormind, SchemeColor, MyColor, MaterialPalette, Adobe Colors, 0to255, 0xrgb, bootflat, brandcolors, colorfulgradients, colourlovers, webkul, flatuicolors, materialui, ColorHunt, colorswall, pigment, Color Palette Generator, colourcode, colorscales, colors.lol, Color Pallete, colorbox, colors.eva, hihayk, calcolor, colorlisa, cohesive-colors, colorleap, colorhuddle, Coolors

Collaboration Platforms

Doozy, Zulip, Miro,Mattermost, Twake, Asana, Freedcamp, Lumeer, Slab, TipiCalls, Focalboard, Wekan, Kanboard, Skiff, Mural, Dendron

Color Pickers

Colordot, Sorted Colors, spencerhamm, color.adobe, colorhexpicker, obscuredetour, colorkit, colorpicker, culrs, colorwise, geenes, image-color, instant-eyedropper, khroma, colorpicker, materialpalettes, picular, react-color, viz-palette, [leonardocolor](https://leonardocolor.io/, Any11

Cooking YouTube Channels

Copy Google Drives

gdrive-copy, googledrive-copy-downloader, TgFolderClone, Telegram-CloneBot, Copy Folder, GDrive-Clone, Telegram Bots

Conversational Chatbots

Replika, Mitsuku, cleverbot, eviebot, rose, jabberwacky, Kajiwoto (ai builder), God, Talk-Bot, Madam Zena

Command Line Shells

zsh - https://www.zsh.org/
Fish - https://fishshell.com/
bash - https://www.gnu.org/software/bash/ (Preinstalled on most distros)
elvish - https://elv.sh/
es - https://wryun.github.io/es-shell/
ion - https://github.com/redox-os/ion
yash - https://yash.osdn.jp/
xonsh - https://xon.sh/
nushell - https://github.com/nushell/nushell

Compression Programs

Conversion Tutorial Index, 7-zip / Fork / Dark / Benchmarks, win-rar / Remove Popup, SuperCompression, peazip, hamstersoft, Unzip Online, kgbarchiver, Pigz, GNU Gzip, ezyZip, FreeARC / FreeARC 0.666, UltraARC, p7zip, Razorx, DZip, FileOptimizer, bzip2, bandizip, tugzip, compress (GitHib Actions), objectfixzip (repair zip), Benchmark, 7-Zip-zstd, Unrar.online, izarc, zipextractor, zipware, winzip

Covers / Posters

Film, The Poster Database, covercentury, covrik, dvd-covers, cover-addict, Gaming Alexandria, BoxEqualArt, poster-man, dlhcollections, postercollector, moviepostersgallery, filmonpaper, gametdb, Joblo, MoviePosterPorn, andydecarli

Album Art

Customizable New Tab Page

StartPage, NightTab, hexagonTab, CaretTab, mesmerized, Bonjourr, Perfect Home, yet another speed dial, Tabliss, Epiboard, Infinity New Tab, b2ntp

Custom Start Page - Terminal Style Start Page
Tabiverse - Universe New Tab Page / Discord
Tabs with a View - Virtual Sights New Tab Page
Minecraft Weather New Tab - Weather Based Minecraft New Tab Page

Custom Rich Discord Presence

CustomRP, EasyRP, RPCEngine, eidolonrp CodeFactor, discord-custom-rich-presence, CustomDiscordRPC

Dark Background and Light Text

Conduit Matrix Servers publiclist.anchel

Design Resources

design-resources-for-developers, Freebies.ByPeople, HiddenTools, Graphic Design Elements, ImCreator, DesignBundles, DesignResources, UIOnline, psddd, GraphicBurger, GraphicsFuel, Pixeden, NoDesign, SketchRepo, Interfaces, Freebiesbug, Sketch App Sources, [FreebiesUI](https://freebiesui.com/, Envato Elements Collection, CreativeFabrica, recursos-gratuitos

Developer Tools

free-for.dev, DevToys, JetBrains / Trial Reset, SmallDev.tools, WebdevHome, Eclipse, DevBox, Free Dev stuff, Tiny Tools

Discord Embed Generators

Discohook, DEG, Rauf's Embed Generator, discord.club, 0x71, Webhook Gold, PSDiscord, Rauf's Embed Generator

Discord Server / Bot Lists

Disboard, DiscordLabs, RovelStars, DiscordServers, Discord Street, discordlist.io, DiscordServers.me, Discords, Discord Me, Disforge, FindADiscord

Bots

BotBlock, Top.gg, Bots on Discord, Discord Bots Labs, Discord Bots, Top Bots, motiondevelopment, infinitybotlist, fateslist, discordservices, discordlistology, discordlist, discordbots, discordbots, discordbotlist, discord.boats, discord-botlist, carbonitex, botlist, blist, bladelist, paradisebots, topcord, radarbotdirectory, yabl, spacebotlist, stellarbotlist, wonderbotlist, voidbots, void.yt

Disk Usage Analyzers

WizTree, WinDirStat, baobab, 2, HDSentinel, Space Sniffer, CrystalDiskInfo, Macrorit Partition Expert, Disk Space Saver

DOS Games

DOSGamesLibrary, DOSBox, DOS Haven, LiquidDoom, The Software Library, Best Old Games, DosGames, PlayDOSGames, ClassicDOSGames, AbandonwareDOS, DOSGames, zczc (Chinese)

Down Site Checkers

Down for Everyone or Just Me, IsItDownRightNow, IsThisServiceDown, down.com, DownDetector, websitedown, isitup

Email Clients

thunderbird, ElectronMail, k9mail, getmailspring, bluemail, claws-mail, emclient, rainloop, roundcube, spikenow, canarymail, twobird, kanmail

Email Forwarding

Forward Email, SimpleLogin, Firefox Relay, spamgourmet, Burner Mail, scr.im, Mailsac, AnonAddy, AltMails, SpamCage, YopMail

Telegram Bots

FakemailBot, DropmailBot, ccgen_robot

Extensions

Mailvelope

Email Sites

Dispostable, GMX, German GMX, Mail.com, 1337.no

Encrypted Android Messengers

Threema, Session, Status, Signal / 2 / 3 / 4, Confide, Anonymous Messenger, ChatSecure, surespot, Snikket, RetroShare, BiP, Olvid, Berty

Encrypted Email Services

ProtonMail / Client / .onion / Account Creator, Enigmail, Private-Mail, ShazzleMail, Mailfence, OnionMail, secMail (tor), TorBox (tor), sigaintevyh2rzvw, CTemplar / Invite / Invite 2, Tilda, Disroot, Tutanota, GMX, NeoMailBox, CounterMail, mailpile, MSGSafe, MsgSafe, SecureNym, TheHelm, OnMail, mailpile

Encrypted Messengers

Signal, RetroShare, Off-the-Record, Session, Opensaw, Demonsaw, Bitmessage / Reference Client, Enigma, Mirage, Keybase / .onion, CWTCH, Bip, Simplex, [Emberclear](https://emberclear.io/, Matrix / Cinny, Commune

Matrix Home Servers

Encrypted XMPP Servers

Server List / 2, Creep, Hot Chilli, XMPP.jp / xmpp.is, webchat.disroot, snopyta, dismail, blah, xabber, Gajim, ChatServer.space

External Subs Player

Penguin, Subtitle-Buddy, Greenfish, SRTViewer, SubtitlePlayer, JustSubsPlayer, FreeSubtitlePlayer

Flash Player Tools

How to Download & Play Flash Games, 2
Ruffle or AwayFL - Flash Emulator
swf2js - JavaScript Flash Player Emulator
Flash Browser / Git / Discord or Basilisk - Flash Player Browser
SuperNova or VidKidz - Browser Flash Player
Lightspark - Open-Source Flash Player
CleanFlash - Open-Source Flash Player
FlashPatch - Adobe Flash Fix
Animate Archive, Clean Flash Builds or FlashPlayerArchive - Flash Player Archive
JPEXS Decompiler - Flash Decompiler
swf2exe - SWF to EXE Converter
swf-to-exe - SWF to EXE Online Converter

Fun Indexes

Neal.fun, AIDN, Neave, BoredHumans, puissant, ThisIsMyWebsiteNow, Mr.doob, Bimble Space, Creative Tech Guy, Just For Fun, Andrew Marsh, JenniferDewalt, Chrome Experiments

Free DNS Servers

Free VPN Configs

Free Webhosting Sites

netlify, heroku, profreehost, 000webhost, infinityfree, openshift, vercel / 2, GitHub Pages, surge, firebase, openode / Github, workers.dev, cloudaccess, Gitlab Pages, glitch, biz.nf, coolify, wix, byet.host, webs, weebly, yola, wordpress / 2, fosshost, jimdo, awardspace, pythonanywhere, droppages, Zeronet, Zeronet 2, ibm cloud, hubzilla, site123, hostbreak, moodlecloud, tilda, paiza.cloud, boomla, BitBucket, repl.it, render, roast, Fleek, stormkit, hostman, freehosting, gearhost, freewebhostingarea, DriveToWeb, freenom, milkshake, ikoula, fanspace, dotera, fc2, pages.cloudflare, w3schools, freehostia, olitt, uhostfull, atspace, ophosting, x10hosting, crystalcloud, lenyxo, yunohost, 1freehosting

File Backup Tools

Cloning Tools, BackupPC, TeraCopy, Ashampoo Backup 202, DeltaCopy, restic, UrBackup, BlobBackup, Paragon, ZPaq, SafeCopy, FastCopy, OCCT, Aomei, Veeam, Duplicati, Borg

File Conversion Tools

CloudConvert, File Converter, Bear File Converter, FreeConvert, Online Convert, Convertio, Zamzar, Online Converter, Format Factory, File-Coversion, PPT Online, File-Conversion, AnyConvert, Converter 365, MiConv, 11zon, Webp2JPGjs, Convert Town, ACConvert, ConvertFiles

Telegram Bots

newfileconverterbot, convrt_bot, FileConvertBot, newfileconverterbot, SmartConverter_bot, cloud_convert_bot, wololopdfbot, pdfbot, Gpdfbot

File Download Managers

JDownloader / Dark Theme / Debloating, 2
Motrix / Firefox /Chrome / GitHub
IDM, 2 / IDMHelper / Trial Reset / Fix
XDM, 2
pyLoad
wfdownloader
FireDM
Mipony
SpeedBit
FlashGet
Westbyte
Ant Download Manager
Xtreme Downlaod Manager
massivedl
Neat Download Manager
Free Download Manager, 2
uGet / Extension
Persepolis
DownZemAll

File Recovery Tools

ZAR Recovery, R-Undelete, PhotoRec, StellarInfo, Windows File Recovery, DMDE, Recuva, TestDisk

File Sharing Tools

Cloud Storage

GDrive, mega / GitHub, dropbox / Client, disk.yandex, TeledriveApp, dubox, mediafire, unlimcloud, terabox, clouddrive, icedrive, trainbit, degoo, gdflix, alfafile, aliyundrive, backblaze, perkeep, filen, internxt, MrOwl, storj

Multi Host Uploaders

Z-o-o-m, MirrorAce, MultiUp / 2, Mirrorcreator, PlowShare

File Hosts

File Sharing Host List / 2, mixdrop, File Pizza, bashupload, sharedrop, xkcd949, wetransfer, dropall, justbeamit, krakenfiles, lufi, share.riseup, ufile, put.re, envelop, swisstransfer, Bayfiles, FireLoad, cyberdrop, Cum.zone, tresorit / 2, pixeldrain, anonfiles, StrongFiles, SecureHa, dropmb, zippyshare, catbox, wormhole, demo.lufi, filewhopper, filedropper, clicknupload, tusfiles, gofile, takemetospace, shitpost.to, bunkr, safe.0x0, iizu, awoo, anonvodka, transferfile racaty, file.lozy.pink, hexupload, netnaijafiles, gachimuchi, myonri, msafe, btrfs, fuckingweeb, safe.vikavo, imouto, zz, edisk, ttm, youdbox, send-anywhere, 1fichier, 9xupload, indishare, desiupload, uploadflix, filestore, hubfiles, uploadraja, doodrive, download.gg, megaup, upload.ee, dropapk, tusfiles, upload.vaa.red, sql.gg, teknik, starfiles, opacity, send / instances, Gokapi, intoupload, zofile, skytransfer, vault.ooo, blackhost, pipe, ninjashare, transfer, workupload, sendspace, secufiles, uploadboy, toffeeshare, decentrafile, file.io, thgss, onuploads, moepantsu, pomf, cockfile, uguu, uguu, qu.ax, fileditch, volkor, easyupload, sundryshare, cloudghost, filebin, tiny-files, up-4ever, easyupload, fromsmash, androiddownload, filechick, prefiles, solidfiles, fileblade, dropcx, usersdownload, fshare, sharry, bunkr, anoxinon, filefactory, rapidshare, jptorrent, batshare, 95.215.205.103, meerodrop, filehosting, depositFiles, FastShare, sendbig, filemail, sharefast, fileconvoy, [sendeyo](https://sendeyo.com/en/, shareupld, anarkrypto, My-Files, vfxfile, uploadproper, filesharego, filedit

File Sync / Network Share

dropbox / Client, file.pizza, keybase, syncthing, onionshare, OwnCloud, MLDonkey, Slate, etesync, WinSCP, freefilesync, allwaysync, sharik, Simple.Savr, FileBrowser, Snapdrop, KDEConnect, Resilio, croc, Ziggs, dsynchronize, landrop, uploadtransfer, Surge, odin, dcplusplus, brig, sparkleshare, saladroom, zansfer, passfile, blymp.io / GitHub, drop.lol / GitHub, sendfiles, Blaze / GitHub, XD-Torrent, lightning

Android File Sync

croc, Snapdrop Android, TrebleShot, Clipt

SkyNet

Skynet, 2, 3, 4

FMovies Clones

Forest

Deutsche Filme, Deutsche Filmee, GERMAN MOVIES

Gameboy Roms

Gamecube Roms

MarioCube
GameCube Archive, 2, 3, 4, 5

Game Libraries / Launcher

GoG Galaxy, Launchbox, GameHub / GitHub, Arc, Playnite, Gnome Games, chad_launcher

German Telegram Movie Downloads

Google Drive Search

Movies, TV, Anime, KDrama

Google Piracy Discussion Groups

GoldMovies Clones

Grammar Check

Scribens, Wordtune, DraftMap, HemingwayApp, Grammark, SlickWrite, Ginger Software, LanguageTool, Grammarly / Free Premium, Grammica, Ludwig, Scribbr, Writer, WordCounter, RewriteTools, TextGears, PolishMyWriting , Reverso Spellcheck, spellcheckplus, GrammarCheck

HiMovies Clones

Icon Download Sites

Awesome Icons, Awesome Stock Resources, Icon Repositories, IconFinder, IconSeeker, Flaticon, SVG Repo, SimpleIcons, Noun Project, tablericons, Gumroad, IconPacks, Streamline Icons, game-icons, icons8, ikonate, iconmonstr, styled-icons, glitter-graphics, Icon Archive, IconDuck, Photoshop Vector Icons, HeroIcons, fontawesome, css.gg, EvaIcons, publicicons, getbootstrap, remixicon, IconSets, coolarchive, 2k Vector Icons, flexiple, uispace, freeicons, Quick Feather Icons, illlustrations, vector.toolxox, icon icons, 27k Pfps, fontawesome icons, 100 Awesome Icon Sets, feathericons, IconHub, Icon Megadrive, icons-for-free, RealFaviconGenerator, Material Icons, TheForgeSmith, Basic Icons, CaptainIconWeb, entypo, mapsicon, materialui, iconoir, weloveiconfonts, weather-icons, typicons, topcoat, toicon, standart, stackicons, pathlove, useiconic, primer, kudakurage, ionic, iconstore, icomoon, zurb, fontello, devicons, grommet, ant.design, icons modulz, tabler icons, iconshock, eos-icons, 1001freedownloads, iconsvg, polaris, ionicons, SuperTinyIcons, systemuicons, healthicons, iconsplace, emblemicons, icofont, Phosphor Icons / Github, lineicons

Image Design Resources

AvaxGFX, Freeject, PDFTree, ExtraGFX, NitroGFX, Designer Candies, Poliigon, PolyHaven, GraphicPear, FreeDesignResources, Huge Graphics Pack, Design Elements, /r/BLKMARKET, GraphixTree, PSDLY, CreativeFabrica / PW, creaxy, CGArchives, gfxcosy, 555 GB Graphic Collection, SearchGFX

Image Download Extensions

Download all Images, Cute Save Button, DownAlbum, Cute Save Button, Download all Images, Save Images

Image Editing

Editing Software

Gimp / Photoshop UI, 2, PhotoDemon, Paint.net, Glimpse, Photoscape, PhotoFiltre, Polarr, ImageMagick / Scripts, Pinta Project, RawTherapee, Pixeluvo, Luna Paint (VS Code), Glimpse, Gimel Studio, Luminar

Online Editors

Photopea / Adblocker, Pixlr, BeFunky, Resize Pixel, FotoFlexer, Sumopaint, Lunapic, Polotno Studio, OIE, ResizeImage, IMG online, BitMappery, Kapwing, Photoshop.adobe, ILoveImg, Panzoid, Stet, GifGit, Polarr, UpperPix, webp2jpg, Picverse, Image Online, Fotor, PictureEditor, PhotoStack

Image hosting / Processing

Hosting

WebOasis IPFS, IMGrPost, ImgBB, Shutterfly, Imgur, FreeImage.Host, snipboard, vaa.red, Postimages, imgbox, pasteboard, vgy, i, tixte, gpic, linkpicture, imagebam, imagevenue, ipfs pics, imageserver, pixelfed, talaikis, sharpphotos

Processing

Sirv, CloudImage, filestack, imagga, kraken, cloudinary, image4, tiny.pictures, zara4, RawTherapee

Image Upscalers

Waifu2x, ESRGAN Models, Upscale Model Database, ESRGAN, GigaPixel, upscaler, Bigjpg, Crunch, Resizer, PNG-Upscale, Cupscale, Img.Upscaler, Upscaler Stockphotos, ImageUpscaler / 2, image upscaler, CupScale

Waifu2x Tools

Guide / Colab / GUI, 2, 3, 4, 5, 6, 7, 8, 9

Image Viewers

IrfanView, qimgv, XnView, nomacs, ImageGlass, PhotoQt, Win 7 Photos, PicView, JPEGView, Image Eye, qView, Quick Picture Viewer / Git, Fragment

Interactive Math Sites

AoPS Alcumus, Cut The Knot, Mathlets, GeoGebra, Mathspad

Internet Speed Test

fast, LibreSpeed, Xfinity Speed Test, DLS Reports, Bandwidth Place, Cloudflare, Speedtest, wifiman, Net Speed Meter, PeerFast (P2P), Speedtest-Tracker

Into The Black Hole

FoxyGestures (firefox), Gesturefy (firefox), CrxMouse (chrome), Simple Gesture (firefox)

IP Checkers

My IP Address, WhatIsMyIPAdress, IPInfoDB, IP Burger, NSUpdate, IfConfig, elahmad, myip, WhatIsMyIPLookup, ipturtle, iphorse, ippig, ipcow, ipchicken

IP / DNS Leak Tests

IP Leak Tests

BrowserLeaks, Astrill, Comparitech, Netease, Do I leak?, IPLeak, IPLeak.com

DNS Leak Tests

DNS Leak Test, tenta, Bash DNS Test

IPTV Tools

Plex + Emby Proxy / m3u to txt / M3U Editor / Dummy EPG

IPTV Playlists

HLS Cat, IPTVCat, DailyIPTVList, AllIPTV, CCcam, TVLab, IPTV_Sport, Leaksat, GratisIPTV, iptvmate, inks-iptv, iptvm3ufree, IPTV, iptvm3ulist, dailym3uiptv, 5-Minute-IPTV, iptv-gratuits, iptvsat, eja.tv, iptv4sat, iptv-work, xtemus, freeiptvm3ulists, Hacxx-Free-IPTV

IRC Book Sites

irc://irc.undernet.org/bookz
irc://irc.irchighway.net/ebooks

Jigsaw Puzzles

jigidi, jigsawonline, jigsawplanet, puzzlefactory, epuzzle, dkmgames, jigzone, jigcardgallery, justjigsawpuzzles

Location Guard

Firefox / 2, Chrome / 2, Opera

LibGen Tools

Desktop / Mobile, 2 / Download Tool / Need Seeds / Python Script / Onion / Backup / /r/libgen

Mirrors

Linux Distros

Babbies First Linux, ArchiveOS, LinuxTracker, tohoku, OpenSourceFeed, minerswin, Pkgs, DistroWatch, ComputerFreely, Devuan, AntiXLinux

Linux Themes

Gnome-Look, OCS Store, Oomox, Adapta, Arc, Numix, Evopop, Flatablous, Flatablous Arc, Material Ocean, Ant , xfce-look

Live Webcams

EarthCam, Explore, Opentopia, The Webcam Network, Insecam, OpenStreetCam, IP-24, WebcamGalore, WebcamTaxi, WorldCams, WorldCam, BalticLiveCam, SkylineWebcams, CamStreaner, /r/controllablewebcams / Discord, CamVista, Fisgonia, PicTimo, WXYZWebcams snoweye, ip-24, camscape, whatsupcams, worldcam, gobefore, webcamhopper, SpiedLife, explore.org, Windy Webcams, Insecam, Airport Webcams (Airports), Africam (Wildlife), TFLJamCams (London Traffic), Monterey Bay Aquarium (Animals), Curlie Webcam Animals (Animals), San Diego Zoo, (Animals), Zoo.org (Animals), AnimalsLife (Kittens)

M3U Players

hlsplayer, PlaylistEditorTV, m3u8player

M4UFree Clones

M4uFree, Streamm4u, m4ufree.to, m4uhd.tv

Magic / Esoteric Telegram Ebooks

Manga Download Bots

HakuNeko, Comics Downloader, FMD, MangaRipper, Comic-DL, work_crawler, Free Manga Downloader, mangadownbot, MangaBot, MangaRipper, Manga Downloader, AnimeClassroom, HDoujinDownloader, FMD2, mangadesk, nice-pferd, manga-py, mdownloader, ScrapScan, mangapy, manga2mobi, Akianonymus, simple-manga-downloader, mangodl, anime-dl / 2

Manhua / Manhwa Manga

Manually Scrape Sites

Add the following commands to a search to manually scrape each site.

Try on google, duckduckgo, yandex & yahoo.

site:vup.to

site:vidlox.me

site:videobin.co

site:vidoza.net

site:vk.com

site:drive.google.com

-inurl:(htm|html|php|pls|txt) intitle:index.of â€œlast modifiedâ€� (mp4|wma|aac|avi)(Archive Scrape)

Media Servers

Plex + /r/plexshares / Setup Guide, 2 / Plex Pass
Autodownload Tools - Companion Apps for Media Servers
Emby + /r/EmbyShares
Jellyfin + /r/JellyfinShares / Anime Plugin / Desktop Client / Android / Last.fm / Playlist Export / Customization Guide / Minimal Skin
Universal Media Server
OSMC
Olaris
Subsonic
Kawaii-Player
Streama
Gerbera
Serviio
Dim
WatchIt
Rygel
MiniDLNA
SimpleDLNA
Vigilio - GitHub
ErsatzTV - Live Channel Media Server
dizqueTV - Live Channel Media Server
Autoscan - Real-Time Plex & Emby File Changes
Ombi - Plex / Emby User Request Management
Overseerr - Plex User Request Management
TRaSH Guides or The Complete Guide - Video Server Setup Guides
compare-media-servers - Media Server Comparisons

Kodi

Kodi - Media Server / Streaming App
Builds Chart - Kodi Builds
Kodi Addons - /r/Addons4Kodi, Addon Tracker / 2
MMA - MMA App
AZNHusband / 2 or cywteow - KDrama Apps
Kodi Tools - IPTV / Media Tracker / Media Manager / Plex

Mind Mapping

Logseq, MindMup, FreeMind, Mindomo, Yuque, MindMapp, [are.na](https://www.are.na/, Domino, GitMind, Coggle (Collaborative)

Minecraft Mods

NordicGames, CurseForge, Planet Minecraft, Modrinth, MC Archive

Minecraft Optimization Mods

OptiFine, Fabulously Optimised, Sodium / Indium / Extra, Phosphor, Hydrogen, Caffeine, Lithium, Ares, MinecraftTweaker

Minecraft Servers

Hokus / Discord, MineColab / GitHub, CubeHosting, MineFort, Minehut, ScalaCube, FreeMC.Host, PloudOS, Aternos, FreeMCServer / uBO Filter

Mouse Gestures

Modded Minecraft Launchers

SkLauncher, MultiMC, GDLauncher, Lunar Client / Tweaks / 2, Koala Launcher, Badlion, OG tLauncher, HMCL, TechnicPack, ATLauncher, RPMLauncher

Multireddits

Explore All Multireddits, Piracy / 2 / 3, Random, Weird YouTube, Streaming / 2, Cord Free TV, News, Tech, Left / 2, Conspiracy, Aliens, Paranormal, Metaphysics, Countries / 2, International AskARedditor, Text Only

Multi Site Cloud Storage Managers

Air Explorer
RaiDrive
RClone - Heroku / WebUI / GUI / Colab / Telegram
gclone, 2 / Guide / Telegram / Bot / Discord Bot / Colab, 2
Rethink Files
Koofr
MultiCloud
MSP360

Multi Site Video Downloaders

Sites / Programs

9xbuddy, savieo, AllTube Download, grabanymedia, Ripsave, KeepSaveIT, TubeOffline, clipconverter, clipgrab, 4kdownload, bitdownloader, you-get, annie, catchvideo, DistillVideo, Catch-Tube, SaveVideo.me, LocoDownloader, Yout, Keepv.id, downloader-ui, connectvip, Vividl, ddownloader, pastedownload, weibomiaopai, gramvio, tubeninja, savethevideo, qvideodownloader, converteri, keepvid.pro/, dodoconverter, zasasa, ytvideodownloader, ByClickDownloader, Lux

Extensions

Download Helper, Video Downloader, AddonCrop, Cococut, skyload

Multi Tool Sites

PineTools, 123Apps, iTools, Framasoft, Browserling Tools, Dan's Tools, WebBrowserTools, CyberChef, ManyTools, Comment Picker, OSINT Combine, MxToolbox, Sumo, Melobytes, PatorJK, SmallSEOTools, UnitPedia, prepostseo, Digital Methods, Flippity, AppsCyborg, JNCK Media, BlackHost, BfoTool, SeoMagnifier, Romanr, Prepostseo, Useful, Semi Colon, FreeToolOnline, 10015.io, JMMG Tools, 0wx.org, tinywow, Self Publishing Titans, Inettools, TuckTools, Ian Coleman, Toolki

Music Libraries / Players

Multi-System

Foobar2000, AIMP, Roon, iTunes, Winamp / Updates, MusicBee, Clementine, Audacious, OvoPlayer, Dopamine, Strawberry, Exaile, JakJuk, Amarok, VOX, Hysolid, aidoru, Melodie, Modular Player, goMP, hyperchroma, Music Player Daemon (Server-Side), NCurses, XMPlay (Chiptune-Friendly), guayadeque, musique, sonata, exaile, quodlibet, ario, deadbeef, groovebasin, destroyer, Ampache / [GitHub](https://github.com/ampache/ampache, Harmanoid

Foobar2000 Tools

Components, 2 / VU Meter, Last.fm Scrobble

Linux

cmus, Tauon Music Box, Lollypop / 2, Audacious, Rhythmbox

Mac

Cog, Cider

Name & Identity Generators

Fake-it, Fake Data, namefake, minirandom, namegenerators, online-generator.com, igopaygo, Fake Name Generator, fakepersongenerator, datafakegenerator, elfqrin, fakedetail, fauxid, fakexy, fake-id

News Feed Aggregators

WebOasis News, QotNews, spidr, All Sides, NewsLookup, NewsNow, Google News, freepo.st, TechMeme, Unfeeder, RealClearPolitics, Their News, Twuko, Lobsters, Blazing News, 68k News, Readspike, Popurls

NetU Hosts

Note Taking / To Do Apps

Notion, AppFlowy, NoteApps (index), Joplin / Firefox / Chrome, GoogleKeepClone, DecksApp, TinyList, Simplenote, SilentNotes / Github, Standard Notes, QOwnNotes, TiddlyWiki, Idaesbasic, To-Do_App, Zim Wiki, Glory Todo Desktop, TickTick, OpenToDoList, Laverna, wikidPad, Turtl, tomboy-ng, FromScratch, Taskwarrior, Super Productivity, Rnote, Fokus, Planner, ToDo R, rebel, NotesMan, Notesnook, [Write Solo](https://writesolo.com/, Wri.pe, Columns, Nototo, Zenkit

Nuke Anything

Office Suites

Microsoft Office DL Guide or OfficeGuideforNoobs / Download / Activate / Hot Keys
LibreOffice
FreeOffice
Office Tool Plus
ClickUp
SSuite
OpenOffice
ArcaneOffice
WPS
Calligra
OnlyOffice - Online Office Suite
Office 365 Activators
OfficeRTool - Office 2016 Activation Tool

Onedrive Generators

Note these also activate Office 365
https://a1_free365.a1od.workers.dev/
free365 - Index
https://xkx.me/
https://a1.zxd.workers.dev/
https://a1_sc.a1od.workers.dev/
https://azzzzzz.lx.workers.dev/
http://free.stulive.com/
https://a1.lx.workers.dev/
https://teams.xkx.me/
https://a1p.zha.bi/#intro
https://od.wasonliu.workers.dev/
https://a1p.xkx.me/
90 Day Trial
Onedrive Generator List

Online Audio Editors

Audioalter, AudioStudio, Audiotool, SoundTrap, BeepBox, Efflux, TwistedWave, AudioToolSet

Open Directory Search String Builder

strixx, lendx, eyeofjustice, lumpysoft, opendirsearch, Ewasion, Palined, filechef, doyouneedmorehdd, FonetAsk, Reecemercer, giitit, odfinder

Open Source Intelligence Indexes

Awesome OSINT, AsINT_Collection, OSINT Framework, OSINT Essentials, OSINT Collection, OSINT Sources, Investigator Tools, OSINT Recherche, Open Source Intelligence, geoint, OSINT Tools, Sector035, Nixintel's OSINT, datajournalism-resources, UK-OSINT, OSINTGeek, Awesome-Telegram-OSINT, Hackers Arise OSINT, osint.link, osinttechniques, Ressources, whatisosint, osintdojo, netbootcamp, 300m, einvestigator, researchclinic, toddington, reuser, booleanstrings, coreysdigs

OS Emulators

Qemu - OS Emulator & Virtualization
copy.sh, OnWorks, simone.computer or Virtual Desktop - Multiple OS Emulators
WinXP.now - Windows XP Browser Emulator
EmuOS, 2, 3, 4 - Windows 95, 98 & ME Emulator
98.js, Rahul or Packard Belle - Windows 98 Emulator
Windows96.net - Windows 96 Browser Emulator
Win95 - Windows 95 Browser Emulator
Windows93 - Windows 93 Browser Emulator / Games
EmuOS - Run Classic Games / Apps In Browser
Windows 1.01 - Windows 1.01 Browser Emulator
RebornXP - Windows XP Browser Emulator
SilveOS, AaronOS, Whimsy, OS.JS, X-WebDesktop or jQuery Desktop - OS Browser Emulator
PCE.js - PCDOS 5 Emulator
Quantum Playground - Quantum Computer Simulator
Win11.vercel, BlueEdge, Rajaniraiyn or Win11 in React/ GitHub - Online Windows 11 Emulator
daedalOS - Online Windows 10 Emulator
DistroTest or JSLinux - Linux Browser Emulator

Panic Button

Firefox / Chrome / Edge / Opera

Password Managers

KeePass - Ports, 2 / Plugins / Read-Only Functionality / CLI
Bitwarden - bitwarden_gcloud / Server / GUI
LessPass
Buttercup
Clipperz
Passman - GitHub
KeeWeb - Github
Spectre
Firefox Lockwise
UPM
Zoho
Password Safe or KDE Wallet Manager - Password Managing Software
TeamPass - Collaborative Password Manager
Passbolt or PSONO - Self-Hosted Password Manager

Password-Protected Bookmarks

Password Data Breach Check

HaveIBeenPwned PW, Breach Alarm, Intelligence X, psbdmp, Dehashed or Spycloud, PasswordSearchBot, ScatteredSecrets

Pastebins

Pastebin Search, Paste.FMHY, disroot, rentry, TextBin, PrivateBin, paste, JustPaste.it, 0bin, pst.moe, ZeroBin, Hastebin, paste2, pastelink, anonpaste, bin.idrix, zerobin, teknik, ghostbin, cryptobin, p.ip.fi, paste.mozilla, paste.ubuntu, pastebin, telegra.ph, codepasta, blackhost, protectedtext, Cl1p, crossface, shortbin, sicp, throwbin, dpaste, copydock, riseup pad, tempaste, zPaste, bitbin, pastes.io, cyberdrop bin, fssquad, txt, peeplink, controlc, katb

PDF Editors / Toolkits

Sites

Sejda, iLovePDF, Smallpdf, PDF24, PDFCandy, SodaPDF, PDFonFly, PDFShelter, DocHub, PDFRedizer, PDFRock, FreePDFConvert, pdf.online, LightPDF, DeftPDF, AvePDF, YupDocs, PDF2Go, CleverPDF, PDF4Me, PDFForge, MyPDFTools, chromePDF, PDFYeah, EasePDF

Programs

Acrobat Pro / Guide, PDFTK, xPDFReader, PDFBox, PDFescape, OpenPDF, PDFedit, PDFSharp, PDFSam, Poppler, PDFCore, PDFEraser, PDFShaper, PoDoFo, pdftkb, xodo, pdf-analyzer, PDF Forge, PDFInsider, PDFChef, Didier Stevens PDF Tools (CLI)

Persian Asian Drama Download

justvina

Persian Video Download

These sites host both Persian and English videos. Use Translator.
ClubFilm - Movies / TV
MelliMovies - Movies / TV
DigiMoviez - Movies / TV
MoboMovies - Movies / TV
PlayStop - Movies / TV
MahanMovie - Movies / TV
S1Movie - Movies / TV

Plagiarism Detection

Plagiarism Checker, PaperRater, Quetext, PlagiarismDetector, CopyScape, PLText, plagscan, plagiarismchecker, grammarly, duplichecker, writer, unicheck, plagiarismsearch, plagiarismcheckerx, onlineplagiarismchecker, copyleaks, plagiarismchecker

Piracy Site Proxies

Unblockit / 2 / 3, Knaben's Proxy List, nocensor, TorrentMirror, unblockninja, uProxy, [unblocktorrent](https://unblocktorrent.com/, TorrentBay, unblock.soy / 2 / 3, piracyproxy, unblockedfor

Popup Blocker Links

Popupblocker All, Popup Blocker Strict / GitHub, PopUpOFF, PopupBlocker

Portable Apps

Portapps, FC Portables, Portable Freeware, TheHouseOfPortable, Windows Portable Apps, PortableApps, Aurelitec, Portable4PC, PortableAppZ

Portuguese Browser Games

Portuguese Bibles

Portuguese Dictionaries / Thesaurus

https://dicionario.priberam.org/
https://michaelis.uol.com.br/
https://aulete.com.br/
https://www.lexico.pt/
https://www.dicio.com.br/
https://www.dicionarioweb.com.br/
https://dicionariocriativo.com.br/
https://www.significados.com.br/
https://www.significadosesinonimos.com.br/
https://www.sonhos.com.br/
https://sonhar.info/
https://www.sonhosbr.com.br/
https://www.significadodesonhos.net/
http://www.achando.info/
https://conceito.de/
https://www.dicionariodesimbolos.com.br/
http://significadodossimbolos.com.br/
https://www.simbolos.net.br/
https://www.dicio.com.br/
https://www.simbolos.com.br/
https://www.significadodascores.com.br/
https://www.dicionario-sinonimo.com/
https://sinonimos-online.com/
https://www.sol.eti.br/index.html
https://www.dicionarioinformal.com.br/ (Slang)
https://www.politize.com.br/dicionario/ (Political)
https://dicionariojuridico.online/ (Legal)
http://dicionariomineires.com.br/ (Mining)
https://www.dicionariofinanceiro.com/ (Financial)
https://dicionarioindigena.blogspot.com/ (Indigenous)
https://www.antonimos.com.br/ (Antonyms)
https://www.sinonimos.com.br/ (Thesaurus)
https://sinonimos.woxikon.pt/ (Thesaurus)
https://www.dicionarioetimologico.com.br/ (Etymologies)
https://www.conjugacao.com.br/ (Verb Conjugations)

Portuguese Grammar Tips & Lessons

Portuguese Recipes

amandocozinhar, Uniao, varandadobolo, receitasdemais, receitasnotadez, saborintenso, cozinhadonabenta, anamariabraga, vovopalmirinha, gastronomias, tecnonoticias, tudoreceitas, tudogostoso, receitasnestle, panelinha, receitasdecomida, cybercook, culinaria, petiscos, receitaseduguedes, teleculinaria, dietaereceitas, receitasdecomidas, gastronomianobrasil, iserv, receiteria, comidasimples, receitasagora, cantinhovegetariano, Emagrecer

Powercord Tools

CSS / Plugins / Embed Generator, 2 / Theme Converter / Premid / Dark Theme / Pronouns / Automated Powercord Installer

Proxy Lists

PROXY List, Free-Proxy-List, Proxy-Daily, Cool-Proxy, Proxy-List / Telegram, OpenProxyList, ProxyScrape, proxy-list, hide.my proxy list

Print Edit WE

Surveillance Self-Defense, Hitchhiker's Guide to Online Anonymity, Defensive Computing Checklist, Security In A Box, AvoidTheHack, Eldritch Data, OWASP Cheatsheet

Privacy Based Browsers

Multi-Platform

Hexavalet, Librewolf / 2, Librefox, Netsurf, Wexond, Otter, BadWolf, Sphere, dumb-browser, Breeze, Dot HQ / Discord, Viper-Browser

Android

Mull, DuckDuckGo Privacy Browser, BiscuitBrowser, SmartCookieWeb, 2 / YTDL, Privacy Browser, friendly, InBrowser, SnapSearch

Privacy Guides

Privacy Tools

privacyguides, Prism-Break, Privacy Respecting, Privacy Tools, Awesome Privacy, online-tools-for-the-pandemic, Privacy Tools List, Snopyta, Hostux, Awesome Security, Security List, Awesome Privacy, Thunix, Zero Data App, De-google-ify Internet, Alternative Internet, silkky.cloud, EPIC, Techxodus, Awesome Windows Security, Tzkuat Ressources, Privacy Tools List, PrivacySavvy, The New Oil

PS4 Roms

qBitorrent Tools

Plugins / Enhanced / Themes / Dark Theme / iOS Theme / Docker Build, 2 / Web Client, 2 / Mega Upload / Gdrive Upload

Radio Streaming Sites

List of Internet Radio Stations

Live Radio

iHeartRadio, Radio.com, OnlineRadioBox, LiveOnlineRadio, WebSDR, System Bus Radio, myTuner, Radio Browser, Deep Web Radio, Zeno, TuneYou, Tvradiotuner, Instant.audio, Radiodeck, VRadio, WorldRadioMap, Streema

Internet Radio

CoreRadio, CMD, lainchan, JetSetRadio, LivexLive, RadioParadise, IndieSHuffle, UpBeat, You42, Jango, RadioTunes, Live365, AccuraRadio, Radio.dubbeh, lainon.life, Tilderadio, AnonRadio, UpBeat / Discord, Radios.yt, SomaFM

Random Sites

StumblingOn, Stumbled, BoredButton, Sharkle!, The Useless Web / 2, JumpStick, OpenBulkURL, WebSurfer, The Forest, WhatsMYIP, takeuselesswebsite, Random-Website

Read Paywalled Articles

wallabag, Paywall Bypass Index, bypass-paywalls, Framabag, pocket, outline, bitbucket / 2, 12ft, Hover Paywalls

Bypass paywalls for scientific documents - Bypass Scientific Document Paywalls
unpaywall - Bypass Scholarly Article Paywalls
Medium Unlimited or Scribe - Unlimited Articles on Medium

Reddit Alternatives

Reddit Alt Index, Raddle / onion, Saidit Lemmy, /r/RedditAlternatives, notabug, postmill, Comet, Sqwok, Ramble (Privacy Focused), Gurlic, Dread, kddit, tildes

Reddit Desktop Apps

reditr, baconit, readit, reddit-on-reddhub, reddplanet

Remote Desktop Clients

Parsec, RustDesk, RemoteDesktop, AnyDesk, TeamViewer, NoMachine, Remmina, UltraViewer, SplashTop, MSP360, Ammyy, Apache Guacamole, FreeRDP, SimpleHelp, Myrtille, Aspia, TightVNC, getscreen, remoteutilities, p2p, Pop, UVNC, DistantDesktop

Restore Classic Google Icons

Resume Makers

RX Resume , cvmkr, resumonk, ceev, creddle, ineedaresu, flowcv, cv2you, cvservant, resume-nation, sajilocv, resumemaker, intelligentcv

Reverse Image Search

Search by Image, TinEye / Extension, Duplichecker, Image Raider, ascii2d, iqdb, Reverse Image Analyser, same.energy, SauceNao / Extension, Yandex Images, VISE, SmartImage, berify, Reverse Image Search

Ripcord Tools

Themes / Binary Patcher / Better Notifications

RSS Feed Readers

FeedReader, QuiteRSS, RSSOwl, CommaFeed, RSSHub, spaRSS, FreshRSS, Fluent Reader, Feeder, The Old Reader, NewsBoat, tt-rss, TheFeedReaderBot (Console), NewsFlash, Miniflux, Photon

Extensions

Feedbro, Brief, Smart-RSS, Fraidycat

Satellite & Street View Maps

OrganicMaps, DuckDuckGo, Yandex, Google, Satellites.pro, Bing, Wego.Here, Terrafly, EarthExplorer, EarthData, PortalDeMapas, Qwant, city2map, Arcane Maps, MapQuest

Save Page WE

Scan Files

VirusTotal / Telegram Bot / Uploader, Hybrid-Analysis, VirSCAN, BitBaan, Joe Sandbox, MetaDefender, NoDistribute, Fortiguard, Jotti, Virus Desk, cuckoo, Antiscan

Screen Recorders

OBS / Guide, Bandicam, FFmpeg, Nchsoftware, RecordMyDesktop, Screenpresso, LiteCam, SRERecorder, CamStudio, EZVid, Captura, ScreenRecorder.2.0, Kap, oCam, WebMCam, SimpleScreenRecorder, Kalmuri, Wink, RecWide, Vileo, Shar.ec, Scre.io, Screen Recorder, ScreenREC, RecordCast, RecordScreen, RecordJoy

Browser Extensions

Screen Recorder, Screenity, Nimbus Capture, Screenshot Capture, Veed.io

Scroll Anywhere

Firefox, Chrome, Opera

Scene Release Trackers

Searx Instances

Fuck Off Google / nixnet / Instance Index, Instance Index 2, anon.sx, searx.ninja, searx

Secure Password Generator

Animes480pFinalizados, Anime480p_Emision, AndrossElLegado, animes_kawais, SimplementeAnime, animesfinalizadoLSHD, AnimeDark17

Send Anonymous Emails

secure-email, 5ymail, anonymousemail, anonymouse, sendanonymousemail, send-email, gilc, mytrashmail, Remailer, MixMaster. mailfreeonline, DeadFake

SFX / Loops

Adobe Audition Downloads, Free-Loops, FreeSOundEffects, Freesound, soundbible, flashkit, ZapsPlat, FindSounds, OrangeFreeSounds, BBC Sound Effects / Downloader, looperman, sonniss2019, storyblocks, LabChirp, Bfxr, Noizable, sampleswap, samplefocus, soundpacks, [Soundfishing](https://www.soundfishing.eu/, SampleScope

Sheet Music Sites

awesome-sheet-music
Music Reader - Practice Reading Sheet Music
/r/sheetmusic
8notes
imslp
mutopiaproject
sheetsearch
Sheet-Music
sheetmusicfox
musopen
CosandScores
librescore
torbybrand
78.108.108.201
bateristaspt
tchunes
Sheets Piano
partdav
PianoSheets
rocm
Piano Sheet Music Drive
Anime Sheet Music Drive
sniff
FluteTunes
cpdl
Ichigos
free-scores
bandmusicpdf
publicdomainsherpa
musescore + Downloader
JMSheetMusic (Jewish Music)

Site Analytics

Site Legitimacy Check

URL Void, ThreatStop, urlscan.io, Scamadviser, SiteSheck, IsLegitSite, scanurl, Dr. Web, Google Safe Browsing

SockShare Clones

Song Identification

Sites / Programs

Midomi, AcrCloud, /r/NameThatSong, Dejavu (python), Audd (api), MusicRecognizer, Mousai

Mobile Apps

Shazam, SoundHound, Music ID iOS

Skip Redirect

FastForward / Discord, bypass.vip, DL Site Scrubber, AdsBypasser / 2, skip-redirect / Chrome, krnl-and-linkvertise-bypasser, Bypass All Shortlinks, Linkvertise-Bypasser, Linkvertise-Bypass, TheBypasser, Bypass-Links, Auto link bypasser, Bypasser

SMS Verification Sites

TextNow, Tempophone, 2ndline, ReceiveaSMS, SMS Receive Free, SMS Online, GetFreeSMSNUmber, SMS Receive, Receive SMS Online, 7Sim, hs3x, receivefreesms, receivesmsonline, receive-sms-online, smsver, Sellaite, Send SMS Now, Free Online Phone, SMS Get, 1s2u, receivesmsonline.me, My Trash Mobile, Temp-Mails, GlobFone, receive-sms, receive-sms-now, freesmsverification, temp-mails-number, countrycode, temp-sms, oksms, temporary-phone-number, cloakmobile, pumpsms, spoofbox, onlinesim, smska, receive-sms-online, smsfinders, receivesms

No CC Required Trial Sites

esendex, burstsms, directsms, vumber

Soundcloud Downloaders

SoundCloud Downloader, Klickaud, Local SoundCloud Downloader, SoundCloud-Playlist-Sync, Soundcloud-Downloader, SCDL / Git, sclouddownloader

Spanish Anime Telegram

Sports Streaming Subs

/r/MLBStreams, /r/ncaaBBallStreams/, /r/WWEstreams/, /r/rugbystreams

Spotify Downloaders

Legit Downloaders

Soggfy / Discord, DownOnSpot, CLSpotify / GitHub

Spotify YouTube Downloaders

Savify, spotify-downloader, Spotify-DL, Sidify, spotDL, Syncify (Playlists), FreyrJS, spotify-to-mp3

Telegram Bots

spotifydl_mp3_bo, Spotdlrobot, Spotify Music Downloader, pymusicdl, spotify-dl

Recorders

Spytify / GitHub

Spotify Tools

Lyrics / Spotify Companion / Playlist Manager / Dedup / Hotkeys / Backup, 2 / Library Size / Listening Stats, 2, 3 / Ad Host Files, 2 / Song Country Search / Taste Judge, Account Gen, 2

Spotify Adblockers

Block Ads, 2, 3, 4 / Linux Adblock

Spotify Themes

Colorize / Spicetify / CLI, 2 / Addons / Discord

Streaming Site CSE

Stock Photo Sites

EveryPixel, Awesome Stock Resources, Png.is, Unsplash, Nohat, Pexels, PixaBay, PNGIMG (png), StockSnap, allthefreestock, altphotos, chamberofcommerce, goodfreephotos, imagebase, morguefile, desirefx, icons8 / 2, gfxmountain, all-free-download, compfight, freepik, creativity103, photopin, photos8, reshot, creativecommons, DreamsTime, OpenAccess, LibreStock, FreeImages, PixelMob, StorySet, behance, barnimages, gratisography, freeillustrations, beatsnoop, kaboompics, picjumbo, negativespace, burst, barnimages, flexiple, skuawk, undraw, rawpixel, drawkit, cgispread, unblast, freedesignfile, argfx, pixabay archive, pxhere, skitterphoto, copyrightfreephotos, libreshot, themeisle, pxfuel, freestockimages, depositphotos, FreePIK, foodiesfeed (Food), Illustrations, Objects, Humaaans, blush, cupcake, bucketlistly, magdeleine, splitshire, littlevisuals, picography, stickpng, lifeofpix, freenaturestock, diverseui (Human Faces), designerspics, travelcoffeebook, publicdomainarchive, twnsnd, moveast, focastock, jeshoots, isorepublic, digitalcollections, flickr, startupstockphotos, shutteroo, photostockeditor, photober, goodstock, freerangestock, bara, thepicpac, streetwill, stokpic, stockified, splashbase, snappygoat, realisticshots, pickupimage, jaymantri, freelyphotos, crowthestone, cc0, albumarium, photoeverywhere, freejpg, getrefe, titania, opendoodles, woobro, thestocks, sitebuilderreport, avopix, openverse, drawkit, 3D Illustrations, 3dbay, pixeltrue, marker-illustrations

Vectors

vectorportal, publicdomainvectors, Free Vector Sites, vecteezy, freevectors, 123freevectors, freevector, vector, freevectors, free-vectors, 365psd, vector4free, zezu, ddpanda

Telegrams

Shutterstock Premium, Free Shutterstock, freestockphotos, Shutter

Downloaders

GetPaidStock, Downloader.la, downloaders, Tomato, sharedvn, shutterscrape, visualhunt

Stock Video Sites

VidsPlay, Awesome Stock Resources, Mixkit, Coverr, Elements, BeachFrontBroll, Videvo, CuteStockFootage, VidEezy, Vecteezy, Mazwai, Pexels Video, Life of Vids, FreeHD, Elements, veed.io, DroneStock, MotionPlaces, For Creatives

Subreddit Discovery

/r/DiscoverReddit Index, /r/Serendipity, /r/ListOfSubreddits, /r/mistyfront, /r/wowthissubexists, /r/findareddit, /r/trendingsubreddits, /r/TrendingReddits/, subreddit_map, SubredditMentionsGraph, redditviz

Summary Generator

Skimcast, SummaryGenerator, Scholarcy / Chrome, Resoomer, tl;dr chrome, SMMRY,

Switch Homebrew Discord Servers

Switch Roms

Tab Managers

OneTab, tabby, TabMerger, Tab Center Reborn, Tabli, Simple Tab Groups, Acid Tabs, Tab Stash

TeamDrive Generators

Temp Email Sites

smailpro (gmail), Gmailnator (gmail), Temp Mail List, disposable-emails, 10 Minute Mail, Temp Mail, cs.email, maildrop, mailinator, mailnesia, 10minutemail, spamgourmet, tempmail.ninja, getnada, tempinbox, disposable, anonbox, youdabomb, Generator.email, kuku, grrmail (tor), Email on Deck, temp-mails, Mohmal, Mohmal, tempmail (terminal), Temp Mail (api), xkx, 33mail, Guerillamail, edumail, Mail.tm, temporarymail, FakeMailGenerator, emailfake, tempmailo, 10minutesemail, emailondeck, tempm, tempail, tempmailaddress, eyepaste, mintemail, mytemp, sharklasers, yopmail, mail.td, dropmail, cryptogmail, inboxkitten, anonymmail, tmailweb, noopmail, tmpemails, one-off, another-temp-mail, tempr, eTempMail, fakemail, throwawaymail, hour, developermail, harakirimail, 33mail, hottempmail, dispomail, tempmail

Telegram Temp Mail Bots

Trashmail, TrashEmail, TempMail_org_bot, tmpmailbot, smtpbot, temp_mail_bot

Temp Mail Extensions

Bloody Vikings!, c0x0, Temp Mail

Telegram Anime Downloads

Telegram Audiobook Downloads

Telegram Audio Download

Music Downloader - FLAC
Joey - FLAC
flacmusics - FLAC
flacmusicalbumfree - FLAC
FLACSong - FLAC
flacmu5ic - FLAC
SACDandDSD - FLAC
FLAC Musik - FLAC
FLAC Album - FLAC
Music_Hunters
/Music
FlacStoreBot - MP3 / FLAC
Musicassistbot - MP3
musicder_bot - MP3
musical_freely - MP3
DeezEmpireBot - MP3 / FLAC
songspkmusic - MP3
Spotifyâ„¢ | DataBase - MP3 / FLAC
bassmuzic - MP3
FLAC_DSD_HIRES_MUSIC - FLAC
MusicsHunterbot
MArchive
ClassicalMusicMe - Classical
MeditationRelaxMusic - Meditation
ElectronicMusicMe - Electronic
BluesJazz - Blues / Jazz

Telegram Audio Download Bots

LyBot - YouTube
YouTube Audio Bot - YouTube
YouTube Audio Download - YouTube
VK Bot - VK
VKM Bot - VK
Meph Bot - VK
yamdbot - Yandex
MP3 downloader - Multi Site
scdlbot - Multi Site
JioDLBot - Music Downloader
Song ID - Shazam Alike
spotifysavebot - Spotify

Telegram Deezer Bots

vkm_bot
Song_downloaderbot
songdl_bot
m1hbot - deezer bots, spotify bots ect.
DeezerMusicBot
FusionDL_Bot
DeezloaderAn0n_bot
FlacStoreBot

Telegram File Tools

GdriveXbot, HK_upload_bot, gdrive_upload_bot, driveuploadbot or gdriveupme_bot - Google Drive Telegram upload bots
Google Drive Bot - Google Drive Client in Telegram
SearchX - Telegram GDrive Search Bot
UploadBots, Uploadgram / Bot, LinkToFileTGBot, UploadURL or UploadDxbot - Upload Files to Telegram
Public Link Bot, AIO Uploader or GetPublicLinkBot, FileUploaderBot, filestolinksbot, highspeedlinksbot, LinkForFilebot, KL_GetPublicUrlBot - Telegram to File Host Upload Bot
mediainforobot - Media File Info
MediaDownBot - Social Media Downloader

Telegram eBook Download

Telegram Video Download

Rare Films - Movies
MoviesVerse - Movies / TV
SeriesArchiveX - Movies / TV
pre_code - Classic
StommeFilms - Classic
ZwartwitFilms - Classic
Cartoon Kingdom - Cartoon
CartoonLibrary or Cartoon_Index - Cartoons
My_cdrama - Chinese Drama
OnlyKDrama - KDrama / Telegram

Text Adventures

iFiction (Index), IFDB (Index), Ifarchive (drive), Pac-Txt, AI Dungeon, A Dark Room, Addventure, The Never Ending Quest, The Text Adventure, Seedship, TextAventures, Crank, Umbra, Web Adventures, WrittenRealms, MudPortal

Text / Code Collaboration

Google Colaboratory, Mattermost, HackMD, Taskade, CryptPad, Socket, Python Online, Whimsical, Firepad, Etherpad, FidusWriter, overleaf

Text Editors

Online Text Editors

Text Rephrashing

QuillBot AI, Rewrite Tool, Paraphraz, Rewriter, Spinbot, Paraphrasing Tool, ArticleReword, Rephrasely, Paraphraser, SmartArticleWriter, Paraphrase-Online

Text to Speech

TikTok Video Downloaders

SnapTik, RipTok, TikMate, TikTokFull, TikTokDer, TK2DL, Tik.fail, OnlineTik, tikmate

Tor Search Engines

Search-Darkweb, DarkSearch, Phobos, Onions Search, OnionLandSearch, Ahmia / Git, Onion.live, Darkdump, doku, VisiTOR, Tornet, Torgle, Tordex, Torch / 2, Tor Search Engine / 2, Tor Search, Torrentz 2, Tormax, Tor77, Tor66, Start, SearX, Phobos, OnionLand Search Engine, Onion Search Service, Onion Search Engine / 2, Onion Center, Onion Bag, Not Evil, MultiVAC, I2P Search, Haystak, Grams, Google.Onion, Excavator, Evo Search, DDG, Dark Web Links, Candle, BTDigg, Ahmia

Torrent to GDrive

Collab

OneClickRun / GitHub, Colab-Hacks Bot / GitHub, MasterColab / GitHub, QBit to Gdrive / GitHub / How-To, Torrent_To_Google_Drive_Downloader

Sites

Zap-Torrent

Bots

Torrent all-in-one bot, Codemaster, Mirror-Bot, TorrentLeech / 2, TorrentLeechX / Mod, google-drive-torrent, torrents-to-google_drive, EmbetaCloud, TorrentMega2GoogleDrive, Torrent-To-Google-Drive-Downloader / 2, Torrents-to-Google-Drive, Slam MirrorBot

Telegram Bots

Torrentz2 Magnet Links

ConvertVideoTGBot, FileConvertRobot, File2videoconvbot

Tracker Lists

ngosang, OpenTrackers, Tracker Tracker, hdvinnie (Private), awesome-piracy, trackerslist / 2, fossbytes list, NewTrackOn, torrent-trackers-list, TrackersListCollection, OpenTrackers

Translation Sites

DeepL, Metalune / 2, Papago, Libretranslate / 2, Translate.com, MyMemory, Lingva, Nice Translator, Yandex.Translate, Reverso, GTranslate, SimplyTanslate_Web, babelfish, translation2, [Free Translations](https://www.freetranslations.org/, Apertium, collinsdictionary, online-translator, reverso, translation, translatedict

Typing Lessons

Lessons - TypingSoft (Index), keybr, Monkey Type, Typing.com, Colemak Academy, klavaro, TIPP10, RapidTyping, TypeLit.io (Novels), Typing Club, Ratatype, JustType, Rasyti, SoloTyping, TypeFast, TypingBolt, AmpheType, Stamina,goodtyping, Typing-Fingers, Typing Arena, TheTypingCat, typing.academy, TechTypingTutor, klavaro, 10fastfingers, Typist (Mac), KTouch (Linux)

Games - TypeRacer, ZType, NitroType, Keyma.sh

Twitch Adblockers

Purple AdBlock, Twitch Ad-Blocker-2, TTV LOL, VideoAdBlockForTwitch, TwitchAdSolutions

uBlock Filters

FilterStalker, dbl.oisd.nl / 2, FilterLists, webannoyances, fuck fuckadblock, The Block List Project, ADFILT, EasyList / Forum, urlhaus-filter, iBlocklist, Energized Protection, Additional Undesired Hosts, Noads, PersonalFilterListCollection, my_filter_list, fanboy, CoinBlockerLists (Cryptomining), CoinBlockerLists, NoTracking blocklist, d3ward, notracking, lan-block, developerdan, scamblocklist, NoADS_RU, iploggerfilter, Anifiltrs, GoodbyeAds, neodevhost, jmdugan/blocklists, referrer-spam-list), black-mirror, CombinedPrivacyBlockLists, hblock, spam404, blacklist, blocklist, energized, Clear URLs

Udemy Coupons

CouponScorpion, discudemy, bestcouponhunter, Coursevania, Learn Viral, BARONIP COUPONS, Course Time, iDownloadCoupon, freeudemycoupondaily

URL Unshorteners

urlex, CheckShortURL, ExpandURL, unshort.link, Unshorten.it, WhereGoes, LongURL, urlxray

Userscript Managers

Greasymonkey, Tampermonkey, Violentmonkey, Firemonkey

Video Converters

HandBrake / Guide, XMedia Recode, staxrip / Guide, FastFlix, AVC, NEAV1E, MP4.to, Evano, mp4 Video Converter, OnlineVideoConverter, WebmtoMP4, WebM.to, MakeMKV, Video2Edit, Winnydows, RipBot264, MeGUI, sickbeard_mp4_automator, automatic-ripping-machine, FastFlix, avisynth, ShutterEncode, Video Express Converter, SafeVideoConverter, Av1an, MediaCoderHQ, Modfy / GitHub, Seven Converter / GitHub, JS Video Converter, nmkoder, AVS4YOU

Telegram Bots

Video Resumer

Video Editors

Programs

Olive, VirtualDub2, LosslessCut, DaVinci Resolve, Shotcut, FreeMake, EZVid, OpenShot, Shotcut, HitFilm, kdenlive, Lightworks, Windows Movie Maker, SimpleMovieMaking, VSDC, Auto-Editor (CLI), MoviePy (Python), [avidemux](http://avidemux.sourceforge.net/, GOMlab

Online Editors

Clideo, Kapwing, InVideo, Biteable, Mastershot, Panzoid, KeepVid, KeepChangeIt, Flexclip, veed.io, FastReel, Convert2Video, Video Cutter, FlexClip, Vididoo, VideoToolbox

Video Hosting Sites

mixdrop, vudeo (8tb), vidyard, streamzz, streamtape, doodstream, aparat, supervideo, ninjastream, youdbox, cloudvideo, powvideo, upstream, videobin, streamable, abyss, NetU, voe.sx, videy, wolfstream, flashx, userload, vidcloud, vidoza, youdbox, fileone, streamlare, videovard, streamsb, HighStream, uqload, anavidz, vupload, speedostream, sendvid, videovard

Video Players

Video Player Tools

MPV Tools - Frontends / Sub Navigation / SponsorBlock / MPV-DiscordRPC / MPC-DiscordRPC / Bilibili Player / Config Guide
VLC Tools - Browser Control / Sub Downloader / OpenWithVLC / Slow Seek Fix / Skins
Video Player Codecs
Windows Media Player Skins / 2

Video Stream Sync

SyncPlay, CyTube, HyperBeam, Kast, Gaze, twoseven, Metastream, Trast, togethertube, Watch2Gether, Vynchronize, SyncTube, Kosmi, Invited.tv, Caracal Club, Primewire, baked.live, neko, Surge, Giggl, Screen Share Party, WatchParty, Stream New / GitHub, bear.cat, TurtleTV, OpenTogetherTube, WatchPubs

Video Search Sites

Good for finding classic, obscure & short films.

Video Search Sites CSE
noodlemagazine, 2, 3 - Lots of NSFW
OK
Facebook Videos
site:vk.com (add to search)
my.mail.ru + try adding site:my.mail.ru to a search
YouTube
Ronemo
Archive
Dailymotion
Vimeo
OxDB
bilibili
rutube - account needed
nicovideo
Veoh
lbry
cda.pl
tilvids
bitchute
PeerTube, 2, 3, 4 / Instances
V-S Mobi
Videa
youku
zloekino
metacafe
NewTube
tudou
BitView
Vidlii
Naver
vdube
ultimedia
odysee
UTreon
tubidy
lbry - App
commons.wikimedia
Myspace Videos
Google Videos
Yandex Videos
DuckDuckGo Videos
Uloz - Short Film Downloads
PeteyVid - Multi-Site Video Search

Wallpapers

wallhaven, Wallpaper Abyss, HD wallpapers, WallpaperFusion, WallpaperAccess, Wallpapers.com, Wallpaper Safari, CoolBackgrounds, sys.re, WallpaperCave, Positron Dream, WalLegend, SkinBase, GetWalls, WallpapersMania, Wallpapers, DualMonitorBackgrounds, SocWall, ThewWallpapers, WPGallery, desktopnexus, wallpaperstock, vlad.studio, ewallpapers, Bing Wallpaper, simpledesktops, doostihaa, Mac Wallpapers 2, Microsoft Wallpapers / 2, 3, WallpaperHub, Wallpaper Tip, WallpaperFlare, hdqwalls, uhdpaper, wallpapersden, arrowwallpapers, MovieMania, wallsbyjfl, Xbox Wallpapers, JFL, vsthemes, wallpaperscraft, backiee, hdwallpapers, wallpaper-house, pixelstalk, 7-themes, gettywallpapers, wallpaperset, wallpapershome, teahub, sfwallpaper, 99images, wallpaperbetter, wallpaperforu, wallpapercrafter, wallpapersmug, goldposter, pikist, hdwallsbox, wallpaperbat, ilikewallpaper, wallup, wallpaperup, setaswall, peakpx, itl, papers, pixel4k, suwalls, GDrive Collection, drawstructure

Telegram Wallpaper Channels

wallpapers, ull_HD_4K_wallpapers, WallpapersGram4K, WallpapersGram, picsart_hd_background, wallpaper_profilei, Anime_WallpapersHD, allwallpaper, Wallpaper, ZedgeImagesBot, picsart_hd_background

Wallpaper Managers

Wallpaper Engine, SuperDuperWallpaper, ScreenPlay, backiee, Daily Reddit Wallpaper, Daily Bing Wallpaper, Awesome Wallpaper, tanck.nl

Animated Wallpapers

/r/LivingBackgrounds, wallpaperwaifu, Scenic Illustrations, MyLiveWallpapers, AnimatedBackgrounds, Lively (Create)

Mobile Wallpapers

Mobile Abyss, Wallpaper Engine, wallhaven, wallpaperfusion, wallpaperaccess, wallpapers.com, wallpapersafari, wallpapercave, positrondream, wallpapersmania, wallpaperstock, simpledesktops, wallpapertip, wallpaperflare, hdqwalls, wallpapersden, arrowwallpapers, moviemania, iOS Wallpapers / 2, VectorifyDaHome, wallsbyjfl, JFL, Gradient, Doodle, backiee, AnimeLibrary_MobileWallpapers, Wallpapers_Phone_Mobile, iphone11papers, Wallpapers Clan

Darkinator - Change Wallpaper Depending on System Theme
Drywall - Android Wallpaper App
wallpaperwaifu - Live Android Wallpaper App
Chroma Galaxy - Live Android Wallpaper
koncius - Android Video to Wallpaper
Grffe - Static & Live iOS Wallpapers
Das Image - iOS Wallpaper App

WCO Clones

WebFont Changer

How Windows Activation Works

Website Creators

GoHugo, SouPalt, Barly, Zola, Jamstack Generators, Hugo, Jekyll, Tails, vveb, Potion, 8b, WebFlow, Universe, Website.com

Simple Site Creators

Straw.Page, Own Free Website, itty.bitty, txti, Sitey, mmm, cargo, Talium, Jigsy, Temper or Neocities, Pagely

Web Scraping / Archiving Tools

Wayback Machine / Downloader, 2 / Addon / Script / Toolkit, awesome-web-scraping, awesome-web-archiving, ArchiveBox, Collect, grab-site, Heritrix, HTTrack, wail, Webrecorder, WikiTeam, wallabag, Conifer, CrowLeer, brozzler, Kiwix, wpull, suckit, wget / wget2, zenscrape, scraping-bot, webscraping, scrapingant, pyscrappy, scrapestack, conifer, archivy, archive.vn, cachedview, archivematica, webarchive, cyotek-webcopy, Website-downloader, Site-DWLoader, archive.ph, timetravel, Eternal, oldweb, vortimo, 22120 (Browser Controller), ghostarchive, webrecorder, web.scraper, archive.fo, archivebox, cachedpages, stealth

Extensions

SingleFileZ, archiveror, archiveweb, Wayback Machine, Web Archives, Vandal / Git, simplescraper

Wii Roms

MarioCube
Wii Rom Archive, 2, 3, 4, 5, 6

Windows 10 Antispy Tools

ShutUp10, Blackbird, W10Privacy, WPD, PrivateWin10, Manage connection endpoints, Manage Microsoft Services connection endpoints, gp-pack PaT, WindowsSpyBlocker, privacy.sexy, optimizer, purge_windows_10_telemetry, DisableWinTracking, win10-unfuck

Windows 10 Debloater

QuickBoost, Basic Windows (Guide), Windows 10 Debloater, Win10AppRemove, TronScript, win10script / 2, Decrapify Windows 10, Ninjutsu, BloatBox, Optimize-Offline, CleanWin, Windows-Decrapifier, Windows10PowerShellReimaging, Remove-Windows10-Bloat, Debloat Windows 10

Windows Activation Scripts

Microsoft-Activation-Scripts, KMS-Auto, KMS_VL_ALL_AIO, KMS VL ALL, hwid.kms38.gen.mk6/ 2, MyDigitalLife, CMWTAT_Digital_Edition, EzWindSLIC (server edition), HEU_KMS, EzHWID, winactivate

Windows File Explorers

Everything
Total Commander
OldNewExplorer
Q-Dir
Sigma
Quick Access Popup
Xplorer
One Commander
Free Commander
Files
MUCommander
TablacusExplorer - GitHub
AlTap
DoubleCMD
ExplorerPatcher
Files - Themes
Clover or QTTabBar - Windows Explorer Tabs
WinFile or FileSearchEX - Original Windows File Manager
Multi Commander - Multi-Tabbed File Manager

Windows ISO

TechBench
Windows 10 LTSC - /r/Windows10LTSC
Windows AME
Massgravel's Pastebin
Bob Pony
Soft.uclv
MSDN
ReviOS
ISO Files. 2
microsoft-download-link-archive
malwarewatch
Windows ISO Google Doc
msdn.hackerc
VLSC
geeks4christ
kacabenggala
jerryching
minerswin
ISO GDrive
AtlasOS - Custom Windows 10 20H2 ISO / Discord
ggOS - Custom Windows 10 20H2 ISO
Windows Sun Valley - Custom Windows 10 21H1 ISO
XOS - Custom Windows 10 1803 ISO
FoxOS - Custom Windows 7 ISO
UnicornsOS - Custom Windows 7 ISO
OldSchoolOS, OS Vault, VETUSWARE or WinWorldPC - Oldschool ISO's
MediaCreationTool.bat - Media Creation Tool Wrapper
Windows 10 Building - How-to Make Custom Windows 10 ISOs

Window Tiling Programs

Plumb, nog, bug.n, GridMove, Amethyst Windows, yatta, WorkSpacer, Komorebi, TileMe, WindowsGrid

Wordpress Themes

gpldl, allwpworld, pwned.space, wplocker, WePlay, freegetdownloader, FreeNulledCode, crackthemes, Mega Drive, jojo-themes, babiato, [newtemplate](https://newtemplate.net/, justfreewpthemes

Worldwide News Sites Index

ABYZNews, AllYouCanRead, W3Newspapers.com, World-Newspapers, OnlineNewspapers

Youtube Android Apps

Vanced, VancedMicroG, Skytube (no login needed), NewPipe, Newpipe w/ Sponsorblock

YouTube Music Players

YTMDesktop / 2, AbleMusicPlayer, Youtube-Music / 2, mps-youtube, YMD

YouTube to MP3

YouTube-DL / Tools, YT-DLP / Discord, YTMDL / GitHub, haruhi-dl, Gramophy,YTMP3, 2, ddownr, mps-youtube, Ontiva, YMP4, YouTube to MP3 Converter, loader, YoutubeDL-Material, DeURL, Yout, FLVto, FreeMake, AudioJack, megaconverter, 320ytmp3, videovor, YouTubeMultiDownloader, onlinevideoconverter, kharasach, yt-mp3s, savemp3, mp3youtubeconverter, ytmp3, mp3fy, youtubeplaylist, y2mate, odownloader, musicmp3, y2mp3, mp3quack, mpgun, yt1s / 2, ymp4, youtubetomp3, mp3download, snappea, ytmp3x, ytformp3, snappea, mp3.studio, y2meta

YouTube Video Downloaders

YT-DL / Tools, YT-DLP, haruhi-dl, ytmp3, Local Youtube Downloader, Tartube, YoutubeDL-Material, Youtube Video Downloader, YouTube MP4, DeURL, Ontiva, YMP4, LocoDownloader, FLVto, FreeMake, megaconverter, videovor, onlinevideoconverter, projectlounge ytdl, kharasach, snappea, YoutubeDownloader, savemp3, mp3youtubeconverter, y2mate, odownloader, ymp4, mpgun, pobieracz, ymp4, snappea, ytmp4converter

Playlists

Loader, YouTubeMultiDownloader, KeepVid, ddownr, youtubeplaylist

YT-DL Tools

GUI, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
CLI, 2
Scripts Index or ytBATCH
Colab
Bookmarklet

Z-Library Mirrors

Z-Library Tools

Mirrors / Scraper / Amazon Links

Zoom WE

Developers and Open Source authors now have a massive amount of services offering free tiers, but it can be hard to find them all to make informed decisions.

This is a list of software (SaaS, PaaS, IaaS, etc.) and other offerings that have free tiers for developers.

The scope of this particular list is limited to things that infrastructure developers (System Administrator, DevOps Practitioners, etc.) are likely to find useful. We love all the free services out there, but it would be good to keep it on topic. It's a bit of a grey line at times so this is a bit opinionated; do not be offended if I do not accept your contribution.

This list is the result of Pull Requests, reviews, ideas and work done by 1100+ people. You too can help by sending Pull Requests to add more services or by remove ones whose offerings have changed or been retired.

NOTE: This list is only for as-a-Service offerings, not for self-hosted software. For a service to be eligible it has to offer a free tier and not just a free trial. If the free tier is time-bucketed it has to be for at least a year. We also consider the free tier from a security perspective, so SSO is fine but I will not accept services that restrict TLS to paid-only tiers.

Table of Contents

Major Cloud Providers' Always-Free Limits
Cloud management solutions
Analytics, Events and Statistics
APIs, Data and ML
Artifact Repos
BaaS
CDN and Protection
CI and CD
CMS
Code Quality
Code Search and Browsing
Crash and Exception Handling
Data Visualization on Maps
DBaaS
Design and UI
Design Inspiration
Dev Blogging Sites
DNS
Docker Related
Domain
Email
Font
Forms
IaaS
IDE and Code Editing
International Mobile Number Verification API and SDK
Issue Tracking and Project Management
Log Management
Management Systems
Messaging and Streaming
Miscellaneous
Monitoring
PaaS
Package Build System
Payment and Billing Integration
Privacy Management
Screenshot APIs
Flutter Related and Building IOS Apps without Mac
Search
Security and PKI
Authentication, Authorization and User Management
Source Code Repos
Storage and Media Processing
Tunneling, WebRTC, Web Socket Servers and Other Routers
Testing
Tools for Teams and Collaboration
Translation Management
Vagrant Related
Visitor Session Recording
Web Hosting
Commenting Platforms
Browser based hardware emulation
Remote Desktop Tools
Game Development
Other Free Resources

Major Cloud Providers

Google Cloud Platform
- App Engine - 28 frontend instance hours per day, 9 backend instance hours per day
- Cloud Firestore - 1GB storage, 50,000 reads, 20,000 writes, 20,000 deletes per day
- Compute Engine - 1 non-preemptible e2-micro, 30GB HDD, 5GB snapshot storage (restricted to certain regions), 1 GB network egress from North America to all region destinations (excluding China and Australia) per month
- Cloud Storage - 5GB, 1GB network egress
- Cloud Shell - Web-based Linux shell/basic IDE with 5GB of persistent storage. 60 hours limit per week
- Cloud Pub/Sub - 10GB of messages per month
- Cloud Functions - 2 million invocations per month (includes both background and HTTP invocations)
- Cloud Run - 2 million requests per month, 360,000 GB-seconds memory, 180,000 vCPU-seconds of compute time, 1 GB network egress from North America per month
- Google Kubernetes Engine - No cluster management fee for one zonal cluster. Each user node is charged at standard Compute Engine pricing
- BigQuery - 1 TB of querying per month, 10 GB of storage each month
- Cloud Build - 120 build-minutes per day
- Cloud Source Repositories - Up to 5 Users, 50 GB Storage, 50 GB Egress
- Google Collab - Free Jupyter Notebooks development environment.
- Full, detailed list - https://cloud.google.com/free
Amazon Web Services
- CloudFront - 1TB egress per month
- Cloudwatch - 10 custom metrics and 10 alarms
- CodeBuild - 100min of build time per month
- CodeCommit - 5 active users,50GB storage and 10000 request per month
- CodePipeline - 1 active pipeline per month
- DynamoDB - 25GB NoSQL DB
- EC2 - 750 hours per month of t2.micro or t3.micro(12mo)
- EBS - 30GB per month of General Purpose (SSD) or Magnetic(12mo)
- Elastic Load Balancing - 750 hours per month(12mo)
- Glacier - 10GB long-term object storage
- Lambda - 1 million requests per month
- SNS - 1 million publishes per month
- SES - 62.000 messages per month
- SQS - 1 million messaging queue requests
- Full, detailed list - https://aws.amazon.com/free/
Microsoft Azure
- Virtual Machines - 1 B1S Linux VM, 1 B1S Windows VM (12mo)
- App Service - 10 web, mobile or API apps (60 CPU minutes / day)
- Functions - 1 million requests per month
- DevTest Labs - Enable fast, easy, and lean dev-test environments
- Active Directory - 500,000 objects
- Active Directory B2C - 50,000 monthly stored users
- Azure DevOps - 5 active users, unlimited private Git repos
- Azure Pipelines — 10 free parallel jobs with unlimited minutes for open source for Linux, macOS, and Windows
- Microsoft IoT Hub - 8,000 messages per day
- Load Balancer - 1 free public load balanced IP (VIP)
- Notification Hubs - 1 million push notifications
- Bandwidth - 15GB Inbound(12mo) & 5GB egress per month
- Cosmos DB - 5GB storage and 400 RUs of provisioned throughput
- Static Web Apps — Build, deploy and host static apps and serverless functions, with free SSL, Authentication/Authorization and custom domains
- Storage - 5GB LRS File or Blob storage (12mo)
- Cognitive Services - AI/ML APIs (Computer Vision, Translator, Face detection, Bots...) with free tier including limited transactions
- Cognitive Search - AI-based search and indexation service, free for 10,000 documents
- Azure Kubernetes Service - Managed Kubernetes service, free cluster management
- Event Grid - 100K ops/month
- Full, detailed list - https://azure.microsoft.com/free/
Oracle Cloud
- Compute - 2 x64-based with 1 GB RAM each, 4 Arm-based Ampere A1 cores and 24 GB of memory usable as one VM or up to 4 VMs
- Block Volume - 4 volumes, 200 GB total (used for compute)
- Object Storage - 10 GB
- Load balancer - 1 instance with 10 Mbps
- Databases - 2 DBs, 20 GB each
- Monitoring - 500 million ingestion datapoints, 1 billion retrieval datapoints
- Bandwidth - 10 TB egress per month, speed limited to 50 Mbps on x64 based VM, 500 Mbps * core count on ARM based VM
- Public IP - 2 IPv4 for VMs, 1 IPv4 for load balancer
- Notifications - 1 million delivery options per month, 1000 emails sent per month
- Full, detailed list - https://www.oracle.com/cloud/free/
IBM Cloud
- Cloud Functions - 5 million executions per month
- Object Storage - 25GB per month
- Cloudant database - 1 GB of data storage
- Db2 database - 100MB of data storage
- API Connect - 50,000 API calls per month
- Availability Monitoring - 3 million data points per month
- Log Analysis - 500MB of daily log
- Full, detailed list - https://www.ibm.com/cloud/free/

Cloud management solutions

Brainboard - Collaborative solution to visually build and manage cloud infrastructures from end-to-end.
Pulumi — Modern infrastructure as code platform that allows you to use familiar programming languages and tools to build, deploy, and manage cloud infrastructure.
terraform.io — Terraform Cloud. Free remote state management and team collaboration for teams up to 5 users.

Source Code Repos

Bitbucket — Unlimited public and private Git repos for up to 5 users with Pipelines for CI/CD
chiselapp.com — Unlimited public and private Fossil repositories
codebasehq.com — One free project with 100 MB space and 2 users
Codeberg.org - Unlimited public and private Git repos for free and open-source projects. Static website hosting with Codeberg Pages.
Gitea.com - Unlimited public and private Git repos
GitGud — Unlimited private and public repositories. Free forever. Powered by GitLab & Sapphire. CI/CD not provided.
GitHub — Unlimited public repositories and unlimited private repositories (with unlimited collaborators). Apart from this some other free services(there are much more but we list the main ones here) provided are :
- CI/CD(Free for Public Repos, 2000 min/month for private repos free)
- Codespaces - Development environments that are hosted in the cloud. 120-core hours available for free every month.
- Static Website Hosting (Free for Public Repos)
- Package Hosting & Container Registry (Free for public repos,500 MB storage & 1GB bandwidth outside CI/CD free for private repos)
- Project Management & Issue Tracking.
gitlab.com — Unlimited public and private Git repos with up to 5 collaborators. Also offers the following features :
- CI/CD (Free for Public Repos, 400 mins/month for private repos)
- Static Sites with GitLab Pages.
- Container Registry with 10 GB limit per repo.
- Project Management & Issue Tracking.
heptapod.net — Heptapod is a friendly fork of GitLab Community Edition providing support for Mercurial
ionicframework.com - Repo and tools to develop applications with Ionic, also you have an ionic repo
NotABug — NotABug.org is a free-software code collaboration platform for freely licensed projects, Git-based
OSDN - OSDN.net is a free-of-charge service for open source software developers, offering SVN/Git/Mercurial/Bazaar/CVS repositories and more.
Pagure.io — Pagure.io is a free and open source software code collaboration platform for FOSS-licensed projects, Git-based
perforce.com — Free 1GB Cloud and Git, Mercurial, or SVN repositories.
pijul.com - Unlimited free and open source distributed version control system. Its distinctive feature is to be based on a sound theory of patches, which makes it easy to learn and use, and really distributed. Solves many problems of git/hg/svn/darcs.
plasticscm.com — Free for individuals, OSS and nonprofit organizations
projectlocker.com — One free private project (Git and Subversion) with 50 MB space
RocketGit — Repository Hosting based on Git. Unlimited Public & Private repositories.
savannah.gnu.org - Serves as a collaborative software development management system for free Software projects (for GNU Projects)
savannah.nongnu.org - Serves as a collaborative software development management system for free Software projects (for non-GNU projects)

APIs, Data and ML

IP.City — 100 free IP geolocation requests per day
A11yWatch - Powerful web accessibility tool at scale. Free site-wide web acessibility testing and beyond that resets daily.
Abstract API — API suite for a variety of use cases including IP geolocation, gender detection or even email validation.
algorithmia.com — Host algorithms for free. Includes free monthly allowance for running algorithms. Now with CLI support.
Apify — Web scraping and automation platform to create an API for any website and extract data. Ready-made scrapers, integrated proxies, and custom solutions. Free plan with $5 platform credits included every month.
API Mocha - Completely free online API mocking for testing and prototyping. Make up to 500 requests per day, fully customizable API responses, download mock rules as a Postman collection.
APITemplate.io - Auto-generate images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML required. Free plan comes with 50 images/month and 3 templates.
Atlas toolkit - Lightweight library to develop single-page web applications that are instantly accessible. Available for Java, Node.js, Perl, Python and Ruby.
Beeceptor - Mock a rest API in seconds, fake API response and much more. Free 50 requests per day, public dashboard, open endpoints (anyone having link to the dashboard can view requests and responses).
bigml.com — Hosted machine learning algorithms. Unlimited free tasks for development, limit of 16 MB data/task.
Bruzu — Automate Image production. Generate tons of Image variants with API, Integrations or nocode sheet. API is FREE with watermark.
Calendarific - Enterprise-grade Public holiday API service for over 200 countries. Free plan includes 1000 calls per month.
Clarifai — Image API for custom face recognition and detection. Able to train AI models. Free plan has 5000 calls per month.
Cloudmersive — Utility API platform with full access to expansive API Library including Document Conversion, Virus Scanning, and more with 800 calls/month.
Colaboratory — Free web-based Python notebook environment with Nvidia Tesla K80 GPU.
Collect2 — Create an API endpoint to test, automate, and connect webhooks. Free plan allows for two datasets, 2000 records, 1 forwarder, and 1 alert.
Conversion Tools - Online File Converter for documents, images, video, audio, eBooks. REST API is available. Libraries for Node.js, PHP, Python. Support files up to 50 GB (for paid plans). Free tier is limited by file size and number of conversions per day.
Coupler - Data integration tool that syncs between apps. It can create live dashboards and reports, transform and manipulate values, collect and back up insights. The free plan has unlimited users, 100 runs with 1000 rows a month and unlimited integrations.
CraftMyPDF - Auto-Generate PDF documents from reusable templates with a drop-and-drop editor and a simple API. Free plan comes with 100 PDFs/month and 3 templates.
CurlHub — Proxy service for inspecting and debugging API calls. Free plan includes 10,000 requests per month.
CurrencyScoop - Realtime currency data API for fintech apps. Free plan includes 5000 calls per month.
Data Fetcher - Connect Airtable to any application or API with no-code. Postman-like interface for running API requests in Airtable. Pre-built integrations with dozens of apps. The free plan includes 100 runs per month.
Dataimporter.io - Tool for connecting, cleaning, and importing data into Salesforce. Free Plan includes up to 20,000 records per month.
Data Miner - A browser extension (Google Chrome, MS Edge) for data extraction from web pages CSV or Excel. The free plan gives you 500 pages/month.
Datapane - API for building interactive reports in Python and deploying Python scripts and Jupyter Notebooks as self-service tools.
DB-IP - Free IP geolocation API with 1k request per IP per day.lite database under CC-BY 4.0 License is free too.
DB Designer — Cloud based Database schema design and modeling tool with a free starter plan of 2 Database models and 10 tables per model.
DeepAR — Augmented reality face filters for any platform with one SDK. Free plan provides up to 10 monthly active users (MAU) and tracking up to 4 faces
Deepnote - A new kind of data science notebook. Jupyter-compatible with real-time collaboration and running in the cloud. Free tier includes unlimited personal projects, up to 750 hours of standard hardware and teams with up to 3 editors.
Diggernaut — Cloud based web scraping and data extraction platform for turning any website to the dataset or to work with it as with an API. Free plan includes 5K page requests monthly.
Disease.sh — A free API providing accurate data for building the Covid-19 related useful Apps.
dreamfactory.com — Open source REST API backend for mobile, web, and IoT applications. Hook up any SQL/NoSQL database, file storage system, or external service and it instantly creates a comprehensive REST API platform with live documentation, user management,...
DynamicDocs - Generate PDF documents with JSON to PDF API based on LaTeX templates. Free plan allows 50 API calls per month and access to a library of templates.
DynaPictures - Design automation tool which lets you dynamically generate images over REST API. Change colors, texts, logos and images on the fly. Free plan includes 30 generated images per month and 3 image templates.
Efemarai - Testing and debugging platform for ML models and data. Visualize any computational graph. Free 30 debugging sessions per month for developers.
Einblick - a modern data science platform that brings Python notebooks to a collaborative canvas and includes tools that automate common tasks such as building predictive models (AutoML) or comparing populations. Free tier includes 5 canvases and unlimited collaborators.
ExtendsClass - Free web-based HTTP client to send HTTP requests.
Export SDK - PDF generator API with drag and drop template editor that also provides an SDK and no-code integrations. Free plan comes with 250 pages per month, unlimited users and three templates.
file.coffee - A platform where you can store up to 15MB/file (30/MB file with an account).
Flatirons Fuse - An embeddable CSV and spreadsheet import tool that makes importing data to your website fast, easy, and painless.
FraudLabs Pro — Screen an order transaction for credit card payment fraud. This REST API will detect all possible fraud traits based on the input parameters of an order. Free Micro plan has 500 transactions per month.
FreeGeoIP.app - Completely free Geo IP information (JSON, CSV, XML). No registration required, 15000 queries per hour rate limit.
Geekflare API - Geekflare API let you take screenshots, audit websites, TLS scan, DNS lookup, test TTFB, and a lot more. The free plan offers 3000 API requests.
GeoDataSource — Location search service lookup for city name by using latitude and longitude coordinate. Free API queries up to 500 times per month.
Glitterly - Programatically generate dynamic images from base templates. Restful API and nocode integrations. Free tier comes with 50 images/month and 5 templates.
GoodData - Data as a Service - Create interactive and insightful dashboards. Free tier comes with 5 workspaces and 100 MB/workspace.
Hex - a collaborative data platform for notebooks, data apps and knowledge libraries. Free community version with up to 3 authors and 5 projects. One compute profile per author with 4GB RAM.
Hookbin - Create unique (public or private) endpoints to collect, parse, and inspect HTTP requests. Inspect headers, body, query strings, cookies, uploaded files, etc. Useful for testing/inspecting webhook. Similar to RequestBin, and Webhook.site.
Hoppscotch - A free, fast, and beautiful API request builder.
Hybiscus - Build pdf reports using a simple declarative API. Free tier includes upto 100 single page reports per month with the ability to customise color pallet and fonts.
Invantive Cloud — Access over 70 (cloud)platforms such as Exact Online, Twinfield, ActiveCampaign or Visma using Invantive SQL or OData4 (typically Power BI or Power Query). Includes data replication and exchange. Free plan for developers and implementation consultants. Free for specific platforms with limitations in data volumes.
ipaddress.sh — Simple service to get public IP address in different formats.
Iploka — IP to Geolocation API - Forever free plan for developers with 10k requests per month limit.
IP Geolocation — IP Geolocation API - Forever free plan for developers with 30k requests per month (1k/day) limit.
IP Geolocation API — IP Geolocation API from Abstract - Extensive free plan allowing 20,000 requests per month.
IP2Location — Freemium IP geolocation service. LITE database is available for free download. Import the database in server and perform local query to determine city, coordinates and ISP information.
IP2Location.io — Freemium, fast and reliable IP geolocation API to determine geolocation data like city, coordinates, ISP and so on. Free plan is available with 30k credits per month. Subscribe paid plans for more advanced features or contact us for a personalized plan.
ipapi - IP Address Location API by Kloudend, Inc - A reliable geolocation API, built on AWS, trusted by Fortune 500. Free tier offers 30k lookups/month (1k/day) without signup. Contact us for a higher limit trial plan.
IPinfo — Fast, accurate, and free (up to 50k/month) IP address data API. Offers APIs with details on geolocation, companies, carriers, IP ranges, domains, abuse contacts, and more. All paid APIs can be trialed for free.
IPList — Lookup details about any IP address, such as Geo IP information, tor addresses, hostnames and ASN details. Free for personal and business users.
BigDataCloud - Provides fast, accurate and free (Unlimited or up to 10K-50K/month) APIs for modern web like IP Geolocation, Reverse Geocoding, Networking Insights, Email and Phone Validation, Client Info and more.
IPTrace — An embarrassingly simple API that provides reliable and useful IP geolocation data for your business.
JSON2Video - A video editing API to automate video marketing and social media videos, programmatically or with no-code.
JSON IP — Returns the Public IP address of the client it is requested from. No registration required for free tier. Using CORS data can be requested using client side JS directly from browser. Useful for services monitoring change in client and server IPs. Unlimited Requests.
konghq.com — API Marketplace and powerful tools for private and public APIs. With the free tier, some features are limited such as monitoring, alerting and support.
Kreya — Free gRPC GUI client to call and test gRPC APIs. Can import gRPC APIs via server reflection.
Lightly — Improve your machine learning models by using the right data. Use datasets of up to 1'000 samples for free.
MailboxValidator — Email verification service using real mail server connection to confirm valid email. Free API plan has 300 verifications per month.
microlink.io – It turns any website into data such as metatags normalization, beauty link previews, scraping capabilities or screenshots as a service. 100 reqs/day every day free.
monkeylearn.com — Text analysis with machine learning, free 300 queries/month.
MockAPI — MockAPI is a simple tool that lets you easily mock up APIs, generate custom data, and preform operations on it using RESTful interface. MockAPI is meant to be used as a prototyping/testing/learning tool. 1 project/50 resources per project for free.
Mocki - A tool that lets you create mock GraphQL and REST APIs synced to a GitHub repository. Simple REST APIs are free to create and use without signup.
Mocko.dev — Proxy your API, choose which endpoints to mock in the cloud and inspect traffic, for free. Speed up your development and integrations tests.
Mocky - A simple web app to generate custom HTTP responses for mocking HTTP request. Also available as open source.
reqres.in - A Free hosted REST-API ready to respond to your AJAX requests.
microenv.com — Create fake REST API for developers with possibility to generate code and app in docker container.
neptune.ai - Log, store, display, organize, compare and query all your MLOps metadata. Free for individuals: 1 member, 100 GB of metadata storage, 200h of monitoring/month
News API — Search news on the web with code, get JSON results. Developers get 3,000 queries free each month.
Nordigen — Free open banking data API. PSD2. Connect 2300+ banks with your app/software in EU+UK.
Observable — a place to create, collaborate, and learn with data. Free: Unlimited notebooks, Unlimited publishing, Five editors per notebook.
OCR.Space — An OCR API which parses image and pdf files returning the text results in JSON format. 25,000 requests per month free.
Duply.co — Create dynamic images from API & URL, design template once and reuse it. Free tier offers 70 images/month creation from API & URL and Up to 100 through Form.
Frontend Zero to One — Launch an app immediately from your OpenAPI or Swagger spec, see how partners experience your API. Free. Paid tier for customizations and code.
OpenAPI3 Designer — Visually create Open API 3 definitions for free.
Orchest — Visual pipeline editor and workflow orchestrator for data science, 1 instance for free, open source version available.
parsehub.com — Extract data from dynamic sites, turn dynamic websites into APIs, 5 projects free.
Pixela - Free daystream database service. All operations are performed by API. Visualization with heat maps and line graphs is also possible.
Postbacks - Request HTTP callbacks for a later time. 8,000 free requests on signup.
Postman — Simplify workflows and create better APIs – faster – with Postman, a collaboration platform for API development. Use the Postman App for free forever. Postman cloud features are also free forever with certain limits.
PrefectCloud — A complete platform for dataflow automation. All plans include 20,000 free runs every month. That's enough to power ETL for most small businesses.
Preset Cloud - A hosted Apache Superset service. Forever free for teams up to 5 users, featuring unlimited dashboards and charts, no-code chart builder and a collaborative SQL editor.
PromptLoop - Use AI and large language models like GPT-3 with a single simple spreadsheet formula to tranform, comprehend, and analyze text in Google Sheets. First 2,000 credits free each month.
ProxyCrawl — Crawl and scrape websites without the need of proxies, infrastructure or browsers. We solve captchas for you and prevent you being blocked. The first 1000 calls are free of charge.
Public-Apis Github Repo — A list of free public APIs.
Supportivekoala — Allows you to autogenerate images by your input via templates. Free plan allows you to create up to 100 images per week.
QuickMocker — Manage online fake API endpoints under your own subdomain, forward requests to localhost URL for webhooks development and testing, use RegExp and multiple HTTP methods for URL path, prioritize endpoints, more than 100 shortcodes (dynamic or fake response values) for response templating, import from OpenAPI (Swagger) Specifications in JSON format, proxy requests, restrict endpoint by IP address and authorization header. Free account provides 1 random subdomain, 10 endpoints, 5 RegExp URL paths, 50 shortcodes per endpoint, 100 requests per day, 50 history records in requests log.
Rapidapi - World’s Largest API Hub Millions of developers find and connect to thousands of APIs, API Development using fun challenges (with solutions!) and interactive examples.
RequestBin.com — Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with the associated payload and headers so you can observe requests from webhooks and other services.
restlet.com — APISpark enables any API, application or data owner to become an API provider in minutes via an intuitive browser interface.
Roboflow - create and deploy a custom computer vision model with no prior machine learning experience required. Free tier includes up to 1,000 free source images.
ROBOHASH - Web service to generate unique (cool :) images from any text.
SaturnCloud - Data science cloud environment, that allows to run Jupyter notebooks and Dask clusters. 30 hours free computation and 3 hours of Dask per month.
Scraper's Proxy — Simple HTTP proxy API made for scraping. Scrape anonymously without having to worry about restrictions, blocks or captchas. First 100 successfully scrape's per month free including javascript rendering (more available if you contact support).
ScrapingAnt — Headless Chrome scraping API and free checked proxies service. Javascript rendering, premium rotating proxies, CAPTCHAs avoiding. Free plans available.
ScraperBox — Undetectable web scraping API using real Chrome browsers and proxy rotation. Use a simple API call to scrape any web page. Free plan has 1000 requests per month.
ScrapingDog — Scrapingdog handles millions of proxies, browsers and CAPTCHAs to provide you with HTML of any web page in a single API call. It also provides Web Scraper for Chrome & Firefox and a software for instant scraping demand. Free plans available.
scrapinghub.com — Data scraping with visual interface and plugins. Free plan includes unlimited scraping on a shared server.
Select Star - is an intelligent data discovery platform that automatically analyzes and documents your data. Free light tier with 1 Data Source, up to 100 Tables and up to 10 Users.
Sheetson - Instantly turn any Google Sheets into RESTful API. Free plan available.
shrtcode API - Free URL Shortening API without authorization and no request limits.
SerpApi - Real-time search engine scraping API. Returns structured JSON results for Google, Youtube, Bing, Baidu, Walmart and many other engines. Free plan includes 100 successful API calls per month.
Similar Words API — An API to find similar words, has vocabulary of about 4Million words.
Sofodata - Create secure RESTful APIs from CSV files. Upload a CSV file and instantly access the data via its API allowing faster application development. Free plan includes 2 APIs and 2,500 API calls per month. No credit card required.
Stoplight - Saas for collaborativly designing and documenting for APIs. The free plan offers free design, mocking and documentation tools to get started.
TinyMCE - rich text editing API. Core features free for unlimited usage.
Unixtime - Free API to convert Unixtime to DateTime and vice versa.
unscan - Free API to scan images for NSFW and files for malware. 100 requests per second.
Webhook.site - Easily test HTTP webhooks with this handy tool that displays requests instantly.
Webhook Store - Tool for storing third party webhooks and debug them on localhost (ngrok style). Open source and self-hostable. Free personal domain username.github.webhook.store, free public domains anything.webhook.store.
wit.ai — NLP for developers.
wolfram.com — Built-in knowledge-based algorithms in the cloud.
wrapapi.com — Turn any website into a parameterized API. 30k API calls per month.
ZenRows — Web Scraping API & proxy server that bypasses any anti-bot solution while offering javascript rendering, rotating proxies, and geotargeting. Free tier of 1000 API calls.
Zenscrape — Web scraping API with headless browsers, residentials IPs and simple pricing. 1000 free API calls/month, extra free credits for students and non-profits.
ip-api — IP Geolocation API, Free for non-commercial use, no API key required, limited to 45 req/minute from the same IP address for the free plan.
WebScraping.AI - Simple Web Scraping API with built-in parsing, Chrome rendering and proxies. 2000 free API calls per month.
Zipcodebase - Free Zip Code API, access to Worldwide Postal Code Data. 10000 free requests/month.
EVA - Free email validator API, which helps to identify whether an email is disposable and having valid MX records.
happi.dev - Freemium api services collection (Music, Exchange Rate, Key value store, Language Detection, Password Generator, QRCode Generator, Lyrics). 4000 free API calls per month.
huggingface.co - Build, train and deploy NLP models for Pytorch, TensorFlow, and JAX. Free up to 30k input characters/mo.
vatcheckapi.com - Simple and free VAT number validation API. 500 free requests per month.
numlookupapi.com - Free phone number validation API - 100k free requests / month.
Volca - Free API providing lists of technologies such as programming languages and database systems. Unlimited free requests.

Artifact Repos

Artifactory - An artifact repository that supports numerous package formats like Maven, Docker, Cargo, Helm, PyPI, CocoaPods, and GitLFS. Incudes package scanning tool XRay and CI/CD tool Pipelines (formerly Shippable) with a free tier of 2,000 CI/CD minutes per month.
central.sonatype.org — The default artifact repository for Apache Maven, SBT and other build systems.
cloudrepo.io - Cloud based, private and public, Maven and PyPi repositories. Free for open source projects.
cloudsmith.io — Simple, secure and centralised repository service for Java/Maven, RedHat, Debian, Python, Ruby, Vagrant +more. Free tier + free for open source.
jitpack.io — Maven repository for JVM and Android projects on GitHub, free for public projects.
packagecloud.io — Easy to use repository hosting for: Maven, RPM, DEB, PyPi, NPM, and RubyGem packages (has free tier).
repsy.io — 1 GB Free private/public Maven Repository.
Gemfury — Private and public artifact repos for Maven, PyPi, NPM, Go Module, Nuget, APT, RPM repositories. Free for public projects.

Tools for Teams and Collaboration

3Cols - A free cloud based code snippet manager for personal and collaborative code.
Bitwarden — The easiest and safest way for individuals, teams, and business organizations to store, share, and sync sensitive data.
Braid — Chat app designed for teams. Free for public access group, unlimited users, history, and integrations. also it provide self-hostable open-source version.
cally.com — Find the perfect time and date for a meeting. Simple to use, works great for small and large groups.
Calendly — Calendly is the tool for connecting and scheduling meetings. Free plan provides 1 Calendar connection per user and Unlimited meetings. Desktop and Mobile apps also provided.
Discord — Chat with public/private rooms. Markdown text, voice, video, and screen sharing capabilities. Free for unlimited users.
Telegram — Telegram is for everyone who wants fast and reliable messaging and calls. Business users and small teams may like the large groups, usernames, desktop apps and powerful file sharing options.
Duckly — Talk and collaborate in real-time with your team. Pair programming with any IDE, terminal sharing, voice, video and screen sharing. Free for small teams.
Dyte - The most developer-friendly live video & audio SDK, featuring collaborative plugins to enhance productivity and engagement. The free tier includes 10,000 minutes of live video/audio usage every month.
evernote.com — Tool for organizing information. Share your notes and work together with others
Fibery — Connected workspace platform. Free for single user, up to 2 GB disk space.
Filestash — A Dropbox-like file manager that connects to a range of protocols and platforms: S3, FTP, SFTP, Minio, Git, WebDAV, Backblaze, LDAP and more.
flock.com — A faster way for your team to communicate. Free Unlimited Messages, Channels, Users, Apps & Integrations
Flowdash — Automate business workflows. Free tier for up to 3 users, 1000 tasks, and 3 workflows.
Gather - A better way to meet online. Centered around fully customizable spaces, Gather makes spending time with your communities just as easy as real life. Free for up to 25 concurrent users.
flat.social - Interactive customizable spaces for team meetings & happy hours socials. Unlimited meetings, free up to 8 concurrent users.
GitDailies - Daily reports of your team's Commit and Pull Request activity on GitHub. Includes Push visualizer, peer recognition system, custom alert builder. Free tier has unlimited users, 3 repos, 3 alert configs.
gitter.im — Chat, for GitHub. Unlimited public and private rooms, free for teams up to 25
Hackmd.io - Real time collaboration & writing tool for markdown format docs/files. Like GoogleDocs but for markdown files. Free unlimited number of "notes", but number of collaborators (invitee) for private notes & template will be limited.
hangouts.google.com — One place for all your conversations, for free, need a Google account
HeySpace - Task management tool with chat, calendar, timeline and video calls. Free for up to 5 users.
helplightning.com — Help over video with augmented reality. Free without analytics, encryption, support
ideascale.com — Allow clients to submit ideas and vote, free for 25 members in 1 community
Igloo — Internal portal for sharing documents, blogs and calendars etc. Free for up to 10 users.
Keybase — Keybase is a cool FOSS alternative to Slack, it keeps everyone's chats and files safe, from families to communities to companies.
Google Meet — Use Google Meet for your business's online video meeting needs. Meet provides secure, easy-to-join online meetings.
/meet for Slack - Start Google Meetings directly from Slack by using /meet in any channel, group or DM. Free without any limitations.
Livecycle — Livecycle is an inclusive collaboration platform that makes workflows frictionless for cross-functional product teams and open source projects.
MarkUp — MarkUp lets you collect feedback directly on top of your websites, PDFs and images.
meet.jit.si — One click video conversations, screen sharing, for free
Microsoft Teams — Microsoft Teams is a chat-based digital hub that brings conversations, content, and apps together in one place all from a single experience. Free for up to 500k users.
Miro - Scalable, secure, cross-device and enterprise-ready team collaboration whiteboard for distributed teams. With freemium plan.
nootiz - The go-to tool for gathering and managing visual feedback on any website
Notion - Notion is a note-taking and collaboration application with markdown support that also integrates tasks, wikis, and databases. The company describes the app as an all-in-one workspace for note-taking, project management and task management. In addition to cross-platform apps, it can be accessed via most web browsers.
Nuclino - A lightweight and collaborative wiki for all your team's knowledge, docs, and notes. Free plan with all essential features, up to 50 items, 5GB total storage.
Quidlo Timesheets - A simple timesheet and time tracking app for teams. Free plan has time tracking and generating reports features, it is available for up to 10 users.
PageShare.dev - Adds visual reviews capabilities into GitHub Pull Requests with no need to deploy websites. Free for up to 10 pages each month and 100MB of storage in total.
Pendulums - Pendulums is a free time tracking tool which helps you to manage your time in a better manner with an easy to use interface and useful statistics.
Raindrop.io - Private and secure bookmarking app for macOS, Windows, Android, iOS and Web. Free Unlimited Bookmarks and Collaboration.
element.io — A decentralized and open source communication tool built on Matrix. Group chats, direct messaging, encrypted file transfers, voice and video chats, and easy integration with other services.
Rocket.Chat - Open-source communication platform with Omnichannel features, Matrix Federation, Bridge with others apps, Unlimited messaging and Full messaging history.
seafile.com — Private or cloud storage, file sharing, sync, discussions. Private version is full. Cloud version has just 1 GB
Sema - Free developer portfolio tool able to consolidate and snapshot contributions across multiple repositories into a single report.
Slab — A modern knowledge management service for teams. Free for up to 10 users.
slack.com — Free for unlimited users with some feature limitations
Spectrum - Create public or private communities for free.
StatusPile - A status page of status pages. Track the status pages of your upstream providers.
Stickies - Visual collaboration app used for brainstorming, content curation, and notes. Free for up to 3 Walls, unlimited users, 1 GB storage.
talky.io — Free group video chat. Anonymous. Peer‑to‑peer. No plugins, signup, or payment required
Teamhood - Free Project, Task and Issue tracking software. Supports Kanban with Swimlanes and full Scrum implementation. Has integrated time tracking. Free for 5 users and 3 project portfolios.
Tefter - Bookmarking app with a powerful Slack integration. Free for open-source teams.
TeleType — share terminals, voice, code, whiteboard and more. no sign-in required, end-to-end encrypted collaboration for developers.
TimeCamp - Free time tracking software for unlimited users. Easily integrates with PM tools like Jira, Trello, Asana, etc.
twist.com — An asynchronous-friendly team communication app where conversations stay organized and on-topic. Free and Unlimited plans available. Discounts provided for eligible teams.
tldraw.com — Free open source white-boarding and diagramming tool with features such as smart arrows, snapping, sticky notes, and SVG export. Multiplayer mode for collaborative editing. Free official VS Code extension available as well.
BookmarkOS.com - Free all-on-one bookmark manager, tab manager, and task manager in a customizable online desktop with folder collaboration.
typetalk.com — Share and discuss ideas with your team through instant messaging on the web or on your mobile
Tugboat - Preview every pull request, automated and on-demand. Free for all, complimentary Nano tier for non-profits.
whereby.com — One click video conversations, for free (formerly known as appear.in)
windmill.dev - Windmill is an open-source developer platform to quickly build production-grade multi-steps automations and internal apps from minimal Python and Typescript scripts. Free user you can create and be member of at most 3 non-premium workspaces.
vadoo.tv — Video hosting and marketing made simple. Upload videos with a single click. Record, manage, share & more. Free tier provides upto 10 videos, 1 GB storage, 10 GB bandwidth/month
vspace — Free links manager with private/public spaces, includes slack and google docs integration and chrome plugin.
userforge.com - Interconnected online personas, user stories and context mapping. Helps keep design and dev in sync, free for up to 3 personas and 2 collaborators.
wistia.com — Video hosting with viewer analytics, HD video delivery and marketing tools to help understand your visitors, 25 videos and Wistia branded player
wormhol.org — Straightforward file sharing service. Share unlimited files up to 5GB to as many peers as you want.
zoom.us — Secure Video and Web conferencing, add-ons available. Free limited to 40 minutes
shtab.app - Project management service that makes collaboration in the office and remotely transparent with tracker based on AI.
Zulip — Real-time chat with unique email-like threading model. Free plan includes 10,000 messages of search history and File storage up to 5 GB. also it provides self-hostable open-source version.
robocorp.com - Open-source stack for powering Automation Ops. Try out Cloud features and implement simple automations for free. Robot work 240 min/month, 10 Assistant runs, Storage of 100 MB.
Fleep.io — Fleep an alternative to Slack. It has a free plan for small teams with full message history, unlimited 1:1 conversations, 1 group conversation and 1 GB file storage.
Chanty.com — Chanty is another alternative to Slack. It has a free forever plan for small teams (up to 10) with unlimited public and private conversations, searchable history, unlimited 1:1 audio calls, unlimited voice messages, 10 integrations and 20 GB storage per team.
ruttl.com — The best all-in-one feedback tool to collect digital feedback and review websites, PDF's and images.

CMS

acquia.com — Hosting for Drupal sites. Free tier for developers. Free development tools (such as Acquia Dev Desktop) also available
Contentful — Headless CMS. Content management and delivery APIs in the cloud. Comes with one free Community space that includes 5 users, 25K records, 48 Content Types, 2 locales.
Cosmic — Headless CMS and API toolkit. Free personal plans for developers.
Crystallize — Headless PIM with ecommerce support. Built-in GraphQL API. Free version includes unlimited users, 1000 catalogue items, 5 GB/month bandwidth and 25k/month API calls.
DatoCMS - Offers free tier for small projects. DatoCMS is a GraphQL based CMS. On the lower tier you have 100k/month calls.
Directus — Headless CMS. A completely free and open-source platform for managing assets and database content on-prem or in the Cloud. No limitations or paywalls.
Forestry.io — Headless CMS. Give your editors the power of Git. Create and edit Markdown-based content with ease. Comes with three free sites that includes 3 editors, Instant Previews. Integrates with blogs hosted on Netlify/GitHubpages/ elsewhere
FrontAid — Headless CMS that stores JSON content directly in your own Git repository. No restrictions.
kontent.ai - A Content-as-a-Service platform that gives you all the headless CMS benefits while empowering marketers at the same time. Developer plan provides 2 users with unlimited projects with 2 environments for each, 500 content items, 2 languages with Delivery and Management API, and Custom elements support. Larger plans available to meet your needs.
Prismic — Headless CMS. Content management interface with fully hosted and scalable API. The Community Plan provides 1 user with unlimited API calls, documents, custom types, assets, and locales. Everything that you need for your next project. Bigger free plans available for Open Content/Open Source projects.
Sanity.io - Platform for structured content that comes with an open-source editing environment and a real-time hosted data store. Unlimited projects. Unlimited admin users, 3 non-admin users, 2 datasets, 500K API CDN requests, 10GB bandwidth, 5GB assets included for free per project.
sensenet - API-first headless CMS providing enterprise-grade solutions for businesses of all size. The Developer plan provides 3 users, 500 content items, 3 built-in roles, 25+5 content types, fully accessible REST API, document preview generation and Office Online editing.
GatsbyjsCMS - Gatsby is the fast and flexible framework that makes building websites with any CMS, API, or database fun again. Build and deploy headless websites that drive more traffic, convert better, and earn more revenue!
GraphCMS - Offers free tier for small projects. GraphQL first API. Move away from legacy solutions to the GraphQL native Headless CMS - and deliver omnichannel content API first.
Squidex - Offers free tier for small projects. API / GraphQL first. Open source, and based on event sourcing (versing every changes automatically).
InstaWP - Launch a WordPress site in a few seconds. A free tier with: 5 Active Sites, 500 MB Space, 48 hrs Site Expiry.

Code Quality

SoftaCheck — An online tool that performs static analysis for C/C++ code using open source tools such as cppcheck and clang-tidy and automatically generates code documentation for users using doxygen. This tool is free for use.
beanstalkapp.com — A complete workflow to write, review and deploy code), free account for 1 user and 1 repository with 100 MB of storage
browserling.com — Live interactive cross-browser testing, free only 3 minutes sessions with MS IE 9 under Vista at 1024 x 768 resolution
codacy.com — Automated code reviews for PHP, Python, Ruby, Java, JavaScript, Scala, CSS and CoffeeScript, free for unlimited public and private repositories
Codeac.io - Automated Infrastructure as Code review tool for DevOps integrates with GitHub, Bitbucket and GitLab (even self-hosted). In addition to standard languages, it analyzes also Ansible, Terraform, CloudFormation, Kubernetes, and more. (open-source free)
CodeBeat — Automated Code Review Platform available for many languages. Free forever for public repositories with Slack & E-mail integration.
codeclimate.com — Automated code review, free for Open Source and unlimited organisation-owned private repos (up to 4 collaborators). Also free for students and institutions.
codecov.io — Code coverage tool (SaaS), free for Open Source and 1 free private repo
CodeFactor — Automated Code Review for Git. Free version includes unlimited users, unlimited public repositories and 1 private repo.
codescene.io - CodeScene prioritizes technical debt based on how the developers work with the code and visualizes organizational factors like team coupling and system mastery. Free for Open Source.
coveralls.io — Display test coverage reports, free for Open Source
dareboost - 5 free analysis report for web performance, accessibility, security each month
deepcode.ai — DeepCode finds bugs, security vulnerabilities, performance and API issues based on AI. DeepCode's speed of analysis allow us to analyse your code in real time and deliver results when you hit the save button in your IDE. Supported languages are Java, C/C++, JavaScript, Python, and TypeScript. Integrations with GitHub, BitBucket and GitLab. Free for open source and private repos, free up to 30 developers.
deepscan.io — Advanced static analysis for automatically finding runtime errors in JavaScript code, free for Open Source
DeepSource - DeepSource continuously analyzes source code changes, finds and fixes issues categorized under security, performance, anti-patterns, bug-risks, documentation and style. Native integration with GitHub, GitLab and Bitbucket.
eversql.com — EverSQL - The #1 platform for database optimization. Gain critical insights into your database and SQL queries, auto-magically.
gerrithub.io — Gerrit code review for GitHub repositories for free
gocover.io — Code coverage for any Go package
goreportcard.com — Code Quality for Go projects, free for Open Source
gtmetrix.com — Reports and thorough recommendations to optimize websites
holistic.dev - The #1 static code analyzer for Postgresql optimization. Performance, security, and architect database issues automatic detection service
houndci.com — Comments on GitHub commits about code quality, free for Open Source
lgtm.com — Continuous security analysis for Java, Python, JavaScript, TypeScript, C#, C and C++, free for Open Source
Moderne.io — Automatic source code refactoring. Moderne offers framework migrations, code analysis with remediation, and unrivaled code transformation at scale, so developers can spend their time building new things instead of maintaining the old. Free for Open Source.
reviewable.io — Code review for GitHub repositories, free for public or personal repos
parsers.dev - Abstract syntax tree parsers and intermediate representation compilers as a service
scan.coverity.com — Static code analysis for Java, C/C++, C# and JavaScript, free for Open Source
scrutinizer-ci.com — Continuous inspection platform, free for Open Source
shields.io — Quality metadata badges for open source projects
Sider — Code review platform for many languages. Supports integration with GitHub. Free for public repositories with unlimited users.
sonarcloud.io — Automated source code analysis for Java, JavaScript, C/C++, C#, VB.NET, PHP, Objective-C, Swift, Python, Groovy and even more languages, free for Open Source
SourceLevel — Automated Code Review and Team Analytics. Free for Open Source and organizations up to 5 collaborators.
Viezly - Enhanced code review tool for easier code reading and navigation. Free for Open Source and free for personal usage.
webceo.com — SEO tools but with also code verifications and different type of advices
zoompf.com — Fix the performance of your web sites, detailed analysis

Code Search and Browsing

tabnine.com — Tabnine helps developers create better software, faster by providing insights learned from all the code in the world. Plugin available.
libraries.io — Search and dependency update notifications for 32 different package managers, free for open source
Namae - Search across various websites like github,gitlab,heroku,netlify and many more for availabilty of your project name.
searchcode.com — Comprehensive text-based code search, free for Open Source
sourcegraph.com — Java, Go, Python, Node.js, etc., code search/cross-references, free for Open Source
tickgit.com — Surfaces TODO comments (and other markers) to identify areas of code worth returning to for improvement.
CodeKeep - Google Keep for Code Snippets. Organize,Discover and share code snippets, featuring a powerful code screenshot tool with preset templates and linking feature.

CI and CD

AccessLint — AccessLint brings automated web accessibility testing into your development workflow. It's free for open source and education purposes.
appcircle.io — Automated mobile CI/CD/CT for iOS and Android with online device emulators. 20 minutes build timeout (60 mins for Open Source) with single concurrency for free.
appveyor.com — CD service for Windows, free for Open Source
Argonaut - Deploy apps and infrastructure on your cloud in minutes. Support for custom and third-party app deployments on Kubernetes and Lambda environments. Free tier allows unlimited apps and deployments for 5 environments and 2 users.
bitrise.io — A CI/CD for mobile apps, native or hybrid. With 200 free builds/month 10 min build time and two team members. OSS projects get 45 min build time, +1 concurrency and unlimited team size.
buddy.works — A CI/CD with 5 free projects and 1 concurrent runs (120 executions/month)
buddybuild.com — Build, deploy and gather feedback for your iOS and Android apps in one seamless, iterative system
circleci.com — Free for one concurrent build
cirrus-ci.org - Free for public GitHub repositories
codefresh.io — Free-for-Life plan: 1 build, 1 environment, shared servers, unlimited public repos
codemagic.io - Free 500 build minutes/month
codeship.com — 100 private builds/month, 5 private projects, unlimited for Open Source
deployhq.com — 1 project with 10 daily deployments (30 build minutes/month)
drone - Drone Cloud enables developers to run Continuous Delivery pipelines across multiple architectures - including x86 and Arm (both 32 bit and 64 bit) - all in one place
LayerCI — CI for full stack projects. 1 full stack preview environment with 5GB memory & 3 CPUs .
ligurio/awesome-ci — Comparison of Continuous Integration services
scalr.com - Remote state & operations backend for Terraform with full CLI support, integration with OPA and a hierarchical configuration model. Free up to 5 users.
semaphoreci.com — Free for Open Source, 100 private builds per month
Squash Labs — creates a VM for each branch and makes your app available from a unique URL, Unlimited public & private repos, Up to 2 GB VM Sizes.
styleci.io — Public GitHub repositories only
Mergify — workflow automation and merge queue for GitHub — Free for public GitHub repositories
Make — Workflow automation tool which lets you connect apps and automate workflows using UI, it supports many apps and most popular APIs. Free for public GitHub repositories, and free tier with 100 Mb, 1000 Operations and 15 minutes of minimum interval.
Spacelift - Management platform for Infrastructure as Code. Free plan features: IaC collaboration, Terraform module registry, ChatOps integration, Continuous resource compliance with Open Policy Agent, SSO with SAML 2.0 and access to public worker pools: up to 200 minutes/month
microtica.com - Spin up environments with ready-made infrastructure components, deploy apps on Kubernetes for free and support your production workloads. Free tier includes 2 services, 100 build minutes/month and 20 deployments/month on a shared Kubernetes Cluster provided by us.

Testing

Applitools.com — Smart visual validation for web, native mobile and desktop apps. Integrates with almost all automation solutions (like Selenium and Karma) and remote runners (Sauce Labs, Browser Stack). free for open source. A free tier for a single user with limited checkpoints per week.
Appetize — Test your Android & iOS apps on this Cloud Based Android Phone/Tablets emulators and iPhone/iPad simulators directly in your browser. Free tier includes 1 concurrent session with 100 minutes usage per month. No limit on app size.
Bird Eats Bug — Report bugs faster (and better). Record your screen with Bird browser extension, it will auto-capture technical data that engineers need to debug. Free tier suitable for small teams.
BugBug - Lightweight test automation tool for web applications. Easy to learn and doesn't require coding. You can run unlimited tests on your own computer for free. For an additional monthly fee, you also get cloud monitoring and CI/CD integration.
lambdatest.com — Manual, visual, screenshot and automated browser testing on selenium and cypress, free for Open Source
browserstack.com — Manual and automated browser testing, free for Open Source
checkbot.io — Browser extension that tests if your website follows 50+ SEO, speed and security best practices. Free tier for smaller websites.
checklyhq.com - Checkly is the API & E2E monitoring platform for the modern stack: programmable, flexible and loving JavaScript. Generous free tier for devs.
crossbrowsertesting.com - Manual, Visual, and Selenium Browser Testing in the cloud - free for Open Source
cypress.io - Fast, easy and reliable testing for anything that runs in a browser. Cypress Test Runner is always free and open source with no restrictions and limitations. Cypress Dashboard is free for open source projects for up to 5 users.
Cypress Recorder by Preflight - Create AI-powered Cypress Tests/POM models on your browser. It's open-source except for the AI part. It's free for 5 test creations each month with Self-healing scripts, Email, and Visual testing.
everystep-automation.com — Records and replays all steps made in a web browser and creates scripts,... free with fewer options
Gremlin — Gremlin's Chaos Engineering tools allow you to safely, securely, and simply inject failure into your systems to find weaknesses before they cause customer-facing issues. Gremlin Free provides access to Shutdown and CPU attacks on up to 5 hosts or containers.
gridlastic.com — Selenium Grid testing with free plan up to 4 simultaneous selenium nodes/10 grid starts/4,000 test minutes/month
katalon.com - Provides a testing platform that can help teams of all sizes at different levels of testing maturity, including Katalon Studio, TestOps (+ Visual Testing free),TestCloud and Katalon Recorder.
loadmill.com - Automatically create API and load tests by analyzing network traffic. Simulate up to 50 concurrent users for up to 60 minutes for free every month.
preflight.com - No-code automated web testing. Record tests on your browser that are resilient to UI changes and run them on Windows machines. Integrate with your CI/CD. The free plan includes 50 test runs per month with video, HTML sessions and more.
percy.io - Add visual testing to any web app, static site, style guide, or component library. Unlimited team members, Demo app and unlimited projects, 5,000 snapshots / month.
saucelabs.com — Cross browser testing, Selenium testing and mobile testing, free for Open Source
snippets.uilicious.com - It's like CodePen, but for cross browser testing. UI-licious lets write tests like user stories, and offers a free platform - UI-licious Snippets - that allows you to run unlimited number of tests on Chrome for free with no sign up requred, for up to 3 minutes per test run. Found a bug? You can simply copy the unique url to your test to show your devs exactly how to reproduce the bug.
testingbot.com — Selenium Browser and Device Testing, free for Open Source
Testspace.com - A Dashboard for publishing automated test results and a Framework for implementing manual tests as code using GitHub. The service is free for Open Source accounts for 450 results per month.
tesults.com — Test results reporting and test case management. Integrates with popular test frameworks. Open Source software developers, individuals, educators, and small teams getting started can request discounted and free offerings beyond basic free project.
websitepulse.com — Various free network and server tools.
qase.io - Test management system for Dev and QA teams. Manage test cases, compose test runs, perform test runs, track defects and measure impact. The free tier includes all core features, with 500Mb available for attachments and up to 3 users.
knapsackpro.com - Speed up your tests with optimal test suite parallelisation on any CI provider. Split Ruby, JavaScript tests on parallel CI nodes to save time. Free plan for up to 10 minutes test files and free unlimited plan for Open Source projects.
webhook.site - Verify webhooks, outbound HTTP requests, or emails with a custom URL. Temporary URL and email address is always free.
Vaadin — Build scalable UIs in Java or TypeScript, and use the integrated tooling, components and design system to iterate faster, design better and simplify the development process. Unlimited Projects with 5 years free maintenance.

Security and PKI

alienvault.com — Uncovers compromised systems in your network
atomist.com — A quicker and more convenient way to automate a variety of development tasks. Now in beta.
Bridgecrew — Infrastructure as code (IaC) security powered by the open source tool - Checkov. The core Bridgecrew platform is free for up to 50 IaC resources.
cloudsploit.com — Amazon Web Services (AWS) security and compliance auditing and monitoring
Cmd — Security platform providing real-time access control and dynamic policy enforcement on every Linux instance in your cloud or datacenter
CodeNotary.io — Open Source platform with indelible proof to notarize code, files, directories or container
crypteron.com — Cloud-first, developer-friendly security platform prevents data breaches in .NET and Java applications
CyberChef — A simple, intuitive web app for analysing and decoding/encoding data without having to deal with complex tools or programming languages. Like a swiss army knife of cryptography & encryption. All features are free to use, no limit. Open source, if you wish to self-host.
DAS — Styra DAS Free, Full lifecycle policy management to create, deploy and manage Open Policy Agent(OPA) authorization
Datree — Open Source CLI tool to prevent Kubernetes misconfigurations by ensuring that manifests and Helm charts follow best practices as well as your organization’s policies
Dependabot Automated dependency updates for Ruby, JavaScript, Python, PHP, Elixir, Rust, Java (Maven and Gradle), .NET, Go, Elm, Docker, Terraform, Git Submodules and GitHub Actions.
DJ Checkup — Scan your Django site for security flaws with this free, automated, checkup tool. Forked from the Pony Checkup site.
Doppler — Universal Secrets Manager for application secrets and config, with support for syncing to various cloud providers. Free for 5 users with basic access controls.
Dotenv — Sync your .env files, quickly & securely. Stop sharing your .env files over insecure channels like Slack and email, and never lose an important .env file again. Free for up to 3 teammates.
GitGuardian — Keep secrets out of your source code with automated secrets detection and remediation. Scan your git repos for 350+ types of secrets and sensitive files – Free for individuals and teams of 25 developers or less.
globalsign.com — Free SSL certificates for Open Source
Have I been pwned? — REST API for fetching the information on the breaches.
hostedscan.com — Online vulnerability scanner for web applications, servers, and networks. 10 free scans per month.
Internet.nl — Test for modern Internet Standards like IPv6, DNSSEC, HTTPS, DMARC, STARTTLS and DANE
keychest.net - SSL expiry management and cert purchase with an integrated CT database
letsencrypt.org — Free SSL Certificate Authority with certs trusted by all major browsers
meterian.io - Monitor Java, Javascript, .NET, Scala, Ruby and NodeJS projects for security vulnerabilities in dependencies. Free for one private project, unlimited projects for open source.
Mozilla Observatory — Find and fix security vulnerabilities in your site.
opswat.com — Security Monitoring of computers, devices, applications, configurations,... Free 25 users and 30 days history users.
pyup.io — Monitor Python dependencies for security vulnerabilities and update them automatically. Free for one private project, unlimited projects for open source.
qualys.com — Find web app vulnerabilities, audit for OWASP Risks
reCAPTCHAMe — free reCAPTCHA and hCAPTCHA backend service. No Server-Side coding needed. Works for static websites.
report-uri.io — CSP and HPKP violation reporting
ringcaptcha.com — Tools to use phone number as id, available for free
seclookup.com - Seclookup APIs can enrich domain threat indicators in SIEM, provide comprehensive information on domain names, improve threat detection & response. Get 50K lookups free here.
snyk.io — Can find and fix known security vulnerabilities in your open source dependencies. Unlimited tests and remediation for open source projects. Limited to 200 tests/month for your private projects.
ssllabs.com — Very deep analysis of the configuration of any SSL web server
StackHawk Automate application scanning throughout your pipeline to find and fix security bugs before they hit production. Unlimited scans and environments for a single app.
Sucuri SiteCheck - Free website security check and malware scanner
Protectumus - Free website security check, site antivirus and server firewall (WAF) for PHP. Email notifications for registered users in free tier.
TestTLS.com - Test a SSL/TLS service for secure server configuration, certificates, chains etc. Not limited to HTTPS.
threatconnect.com — Threat intelligence: It is designed for individual researchers, analysts and organizations who are starting to learn about cyber threat intelligence. Free up to 3 Users
tinfoilsecurity.com — Automated vulnerability scanning. Free plan allows weekly XSS scans
Ubiq Security — Encrypt and decrypt data with 3 lines of code and automatic key management. Free for 1 application and up to 1,000,000 encryptions per month.
Virgil Security — Tools and services for implementing end-to-end encryption, database protection, IoT security and more in your digital solution. Free for applications with up to 250 users.
Virushee — Privacy-oriented file/data scanning powered by hybrid heuristic and AI-assisted engine. Possible to use internal dynamic sandbox analysis. Limited to 50MB per file upload
Escape GraphQL Quickscan - One-click security scan of your GraphQL endpoints. Free, no login required.

Authentication, Authorization and User Management

asgardeo.io - Seamless Integration of SSO, MFA, passwordless auth and more. Includes SDKs for frontend and backend apps. Free up to 1000 MAUs and 5 identity providers.
auth0.com — Hosted free for development SSO. Up to 2 social identity providers for closed-source projects.
Authgear - Bring Passwordless, OTPs, 2FA, SSO to your apps in minutes. All Front-end included. Free up to 5000 MAUs.
Authress — Authentication login and access control, unlimited identity providers for any project. Facebook, Google, Twitter and more. First 1000 API calls are free.
Authy - Two-factor authentication (2FA) on multiple devices, with backups. Drop-in replacement for Google Authenticator. Free for up to 100 successful authentications.
Clerk.dev — User management, auth, 2FA/MFA with prebuilt UI components. Free up to 500 monthly active users.
duo.com — Two-factor authentication (2FA) for website or app. Free for 10 users, all authentication methods, unlimited, integrations, hardware tokens.
Jumpcloud — Provides directory as a service similar to Azure AD, user management, single sign-on, and RADIUS authentication. Free for up to 10 users.
LoginRadius — Managed User Authentication service for free. Email registration and 3 social providers.
logintc.com — Two-factor authentication (2FA) by push notifications, free for 10 users, VPN, Websites and SSH
MojoAuth - MojoAuth makes it easy to implement Passwordless authentication on your web, mobile or any application in minutes.
Okta — User management, authentication and authorization. Free for up to 1000 monthly active users.
onelogin.com — Identity as a Service (IDaaS), Single Sign-On Identity Provider, Cloud SSO IdP, 3 company apps and 5 personal apps, unlimited users
Ory - AuthN/AuthZ/OAuth2.0/Zero Trust managed security platform. Forever free developer accounts with all security features, unlimited team members, 200 daily active users, and 25k/mo permission checks.
SuperTokens - Open source user authentication that natively integrates into your app - enabling you to get started quickly while controlling the user and developer experience. Free for up to 5000 MAUs.
Warrant — Hosted enterprise-grade authorization and access control service for your apps. Free tier includes 1 million API requests per month and 1,000 authz rules.
ZITADEL Cloud — A turnkey user and access management that works for you and supports multi tenant (B2B) use cases. Free for up to 25'000 authenticated requests, with all security features (no paywall for OTP, Passwordless, Policies and so on).

Management System

bitnami.com — Deploy prepared apps on IaaS. Management of 1 AWS micro instance free
Esper — MDM and MAM for Android Devices with DevOps. 100 devices free with 1 user license and 25 MB Application Storage.
jamf.com — Device management for iPads, iPhones and Macs, 3 devices free
Miradore — Device Management service. Stay up-to-date with your device fleet and secure an unlimited number of devices for free. Free plan offers basic features.
moss.sh - Help developers deploy and manage their web apps and servers. Free up to 25 git deployments per month
runcloud.io - Server management focusing mainly on PHP projects. Free for up to 1 server.
ploi.io - Server management tool to easily manage and deploy your servers & sites. Free for 1 server.

Messaging and Streaming

Ably - Realtime messaging service with presence, persistence and guaranteed delivery. Free plan includes 3m messages per month, 100 peak connections and 100 peak channels.
cloudamqp.com — RabbitMQ as a Service. Little Lemur plan: max 1 million messages/month, max 20 concurrent connections, max 100 queues, max 10,000 queued messages, multiple nodes in different AZ's
connectycube.com - Unlimited chat messages, p2p voice & video calls, files attachments and push notifications. Free for apps up to 20K MAU.
courier.com — Single API for push, in-app, email, chat, SMS, and other messaging channels with template management and other features. Free plan includes 10,000 messages/mo.
knock.app – Notifications infrastructure for developers. Send to multiple channels like in-app, email, SMS, Slack, and push with a single API call. Free plan includes 10,000 messages/mo.
pusher.com — Realtime messaging service. Free for up to 100 simultaneous connections and 200,000 messages/day
scaledrone.com — Realtime messaging service. Free for up to 20 simultaneous connections and 100,000 events/day
synadia.com — NATS.io as a service. Global, AWS, GCP, and Azure. Free forever with 4k msg size, 50 active connections and 5GB of data per month.
cloudkarafka.com - Free Shared Kafka cluster, up to 5 topics, 10MB data per topic and 28 days of data retention.
pubnub.com - Swift, Kotlin and React messaging at 1 million transactions each month. Transactions may contain multiple messages.
eyeson API - A video communication API service based on WebRTC (SFU, MCU) to build video platforms. Allows RealTime Data Injection, Video Layouts, Recordings, a fully featured hosted web UI (quickstart) or packages for custom UIs. Has a free tier for developers with 1000 meeting minutes a month.
Upstash Kafka - Serverless Kafka Cloud offering with per-request-pricing. It has a free tier with max 10000 messages per day.
webpushr - Web Push Notifications - Free for upto 10k subscribers, unlimited push notifications, in-browser messaging
Scramjet Cloud Platform Beta - An end-to-end stream processing platform in free beta and offering 15 petabyte-seconds of free compute after the beta ends.

Log Management

bugfender.com — Free up to 100k log lines/day with 24 hours retention
humio.com — Free up to 16 GB/day with 7 days retention
logdna.com - Free for a single user, no retention, unlimited hosts and sources
logentries.com — Free up to 5 GB/month with 7 days retention
loggly.com — Free for a single user, 200MB/day with 7 days retention
logz.io — Free up to 1 GB/day, 1 days retention
ManageEngine Log360 Cloud — Log Management service powered by Manage Engine. Free Plan offers 50 GB storage with 1 Month retention.
papertrailapp.com — 48 hours search, 7 days archive, 50 MB/month
sematext.com — Free up to 500 MB/day, 7 days retention
sumologic.com — Free up to 500 MB/day, 7 days retention
logflare.app — Free for upto 12,960,000 enteries per app per month, 3 days retention
logtail.com — ClickHouse-based SQL-compatible log management. Free up to 1 GB per month, 3 days retention.

Translation Management

crowdin.com — Unlimited projects, unlimited strings and collaborators for Open Source
gitlocalize.com - Free and unlimited for both private and public repositories
Lecto - Machine Translation API with Free tier (30 free requests, 1000 translated characters per request). Integrated with Loco Translate Wordpress plugin.
lingohub.com — Free up to 3 users, always free for Open Source
localazy.com - Free for 1000 source language strings, unlimited languages, unlimited contributors, startup and open source deals
Localeum - Free up to 1000 strings, 1 user, unlimited languages, unlimited projects
localizely.com — Free for Open Source
Loco — Free up to 2000 translations, Unlimited translators, 10 languages/project, 1000 translatable assets/project
oneskyapp.com — Limited free edition for up to 5 users, free for Open Source
POEditor — Free up to 1000 strings
SimpleLocalize - Free up to 100 translation keys, unlimited strings, unlimited languages, startup deals
Texterify - Free for a single user
Tolgee - Free SaaS offering with limited translations, forever-free self hosted version
transifex.com — Free for Open Source
Translation.io - Free for Open Source
Translized - Free up to 1000 strings, 1 user, unlimited languages, unlimited projects
webtranslateit.com — Free up to 500 strings
weblate.org — It's free for libre projects up to 10,000 string source for the free tier, and Unlimited Self-hosted on-premises.
Free PO editor — Free for everybody

Monitoring

Pingmeter.com - 5 uptime monitors with 10 minutes interval. monitor SSH, HTTP, HTTPS, and any custom TCP ports.
appdynamics.com — Free for 24 hours metrics, application performance management agents limited to one Java, one .NET, one PHP and one Node.js
appneta.com — Free with 1-hour data retention
appspector.com - Mission control, for remote iOS/Android/Flutter debugging. Free for small traffic usage (64MB of logs).
assertible.com — Automated API testing and monitoring. Free plans for teams and individuals.
blackfire.io — Blackfire is the SaaS-delivered Application Performance Solution. Free Hacker plan (PHP only)
checklyhq.com - Open source E2E / Synthetic monitoring and deep API monitoring for developers. Free plan with 5 users and 50k+ check runs.
circonus.com — Free for 20 metrics
cloudsploit.com — AWS security and configuration monitoring. Free: unlimited on-demand scans, unlimited users, unlimited stored accounts. Subscription: automated scanning, API access, etc.
cronitor.io - Performance insights and uptime monitoring for cron jobs, websites, APIs and more. Free tier with 5 monitors.
datadoghq.com — Free for up to 5 nodes
deadmanssnitch.com — Monitoring for cron jobs. 1 free snitch (monitor), more if you refer others to sign up
economize.cloud — Economize helps demystify cloud infrastructure costs by organizing cloud resources, optimize and report the same. Free for up to $5000 spends on Google Cloud Platform every month.
elastic.co — Instant performance insights for JS developers. Free with 24 hours data retention
freeboard.io — Free for public projects. Dashboards for your Internet of Things (IoT) projects
freshworks.com — Monitor 50 URLs at 1-minute interval with 10 Global locations and 5 Public status pages for Free
gitential.com — Software Development Analytics platform. Free: unlimited public repositories, unlimited users, free trial for private repos. On-prem version available for enterprise.
Grafana Cloud - Grafana Cloud is a composable observability platform, integrating metrics and logs with Grafana. Free: 3 users, 10 dashboards, 100 alerts, metrics storage in Prometheus and Graphite (10,000 series, 14 days retention), logs storage in Loki (50 GB of logs, 14 days retention)
healthchecks.io — Monitor your cron jobs and background tasks. Free for up to 20 checks.
inspector.dev - A complete Real-Time monitoring dashboard in less than one minute with free forever tier.
instrumentalapp.com - Beautiful and easy-to-use application and server monitoring with up to 500 metrics and 3 hours of data visibility for free
keychest.net/speedtest - Independent speed test and TLS handshake latency test against Digital Ocean
letsmonitor.org - SSL monitoring, free for up to 5 monitors
loader.io — Free load testing tools with limitations
meercode.io — Meercode is the ultimate monitoring dashboard for your CI/CD builds. Free for open-source and 1 private repository.
netdata.cloud — Netdata is an open source tool designed to collect real-time metrics.Great fast growing product. It can also be found in github!
newrelic.com — New Relic observability platform built to help engineers create more perfect software. From monoliths to serverless, you can instrument everything, then analyze, troubleshoot, and optimize your entire software stack. Free tier offers 100GB/month of free data ingest, 1 free full access user, and unlimited free basic users.
nixstats.com - Free for one server. E-Mail Notifications, public status page, 60 second interval and more.
OnlineOrNot.com - OnlineOrNot is a reliable uptime monitor for both JS-based web apps and websites. 5 uptime checks (for static websites and APIs) with a 5 minute interval, 1 browser check with a 15 minute interval. Also provides automated public status pages (with support coming for 3rd party uptime monitoring). Free for up to 3 users, alerts via Slack, Discord, and Email.
opsgenie.com — Powerful alerting and on-call management for operating always-on services. Free up to 5 users.
paessler.com — Powerful infrastructure and network monitoring solution including alerting, strong visualization capabilities and basic reporting. Free up to 100 sensors.
syagent.com — Non commercial free server monitoring service, alerts and metrics.
pagertree.com - Simple interface for alerting and on-call management. Free up to 5 users.
pingbreak.com — Modern uptime monitoring service. Check unlimited URLs and get downtime notifications via Discord, Slack or email.
pingpong.one — Advanced status page platform with monitoring. Free tier includes one public customizable status page with SSL subdomain. Pro plan is offered to open-source projects and non-profits free of charge.
sematext.com — Free for 24 hours metrics, unlimited number of servers, 10 custom metrics, 500,000 custom metrics data points, unlimited dashboards, users, etc.
sitemonki.com — Website, domain, Cron & SSL monitoring, 5 monitors in each category for free
skylight.io — Free for first 100,000 requests (Rails only)
speedchecker.xyz — Performance Monitoring API, checks Ping, DNS, etc.
stathat.com — Get started with 10 stats for free, no expiration
statuscake.com — Website monitoring, unlimited tests free with limitations
statusgator.com — Status page monitoring, 3 monitors free
thousandeyes.com — Network and user experience monitoring. 3 locations and 20 data feeds of major web services free
thundra.io/apm — Application monitoring and debugging. Has a free tier up to 250k monthly invocations.
uptimerobot.com — Website monitoring, 50 monitors free
uptimetoolbox.com — Free monitoring for 5 websites, 60 second intervals, public statuspage.
zenduty.com — End-to-end incident management, alerting, on-call management and response orchestration platform for network operations, site reliability engineering and DevOps teams. Free for upto 5 users.
instatus.com - Get a beautiful status page in 10 seconds. Free forever with unlimited subs and unlimited teams.
Squadcast.com - Squadcast is an end-to-end incident management software that's designed to help you promote SRE best practices. Free forever plan available for upto 10 users.
RoboMiri.com - RoboMiri is a stable uptime monitor that offer a wide range of monitors: cronjob, keyword, website, port, ping. 25 uptime checks with a 3 minutes interval checks for free. Alerts via Phone Call, SMS, Email and Web Hook.
Better Stack - Uptime monitoring, incident management, on-call scheduling/alerting and status pages in a single product. 10 monitors with 3 min check frequency and status pages are included on the free plan.

Crash and Exception Handling

CatchJS.com - JavaScript error tracking with screenshots and click trails. Free for open source projects.
bugsnag.com — Free for up to 2,000 errors/month after the initial trial
elmah.io — Error logging and uptime monitoring for web developers. Free Small Business subscription for open source projects.
exceptionless — Real-time error, feature, log reporting and more. Free for 3k events per month/1 user. Open source and easy to self-host for unlimited use.
GlitchTip — Simple, open source error tracking. Compatible with open-source Sentry SDKs. 1000 events per month for free, or can self-host with no limits
honeybadger.io - Exception, uptime, and cron monitoring. Free for small teams and open-source projects (12,000 errors/month).
memfault.com — Cloud platform for device observability and debugging. 100 devices free for Nordic, NXP, and Laird devices.
rollbar.com — Exception and error monitoring, free plan with 5,000 errors/month, unlimited users, 30 days retention
sentry.io — Sentry tracks app exceptions in real-time, has a small free plan. Free for 5k errors per month/ 1 user, unrestricted use if self-hosted

Search

algolia.com — Hosted search-as-you-type (instant). Free hacker plan up to 10,000 documents and 100,000 operations. Bigger free plans available for community/Open Source projects
bonsai.io — Free 1 GB memory and 1 GB storage
CommandBar - Unified Search Bar as-a-service, web based UI widget/plugin that allows your users to search contents, navigations, features, etc. within your product, which helps discoverability. Free for up-to 1000 Monthly Active Users, unlimited commands.
searchly.com — Free 2 indices and 20 MB storage
pagedart.com - AI search as a service the free tier includes 1000 Documents, 50000 searches. Larger free tiers are possible for worthwhile projects.

Email

10minutemail - Free, temporary email for testing.
AnonAddy - Open-source anonymous email forwarding, create unlimited email aliases for free
Antideo — 10 API requests per hour for email verification, IP and phone number validation in free tier. No Credit Cards required.
biz.mail.ru — 5,000 mailboxes with 25 GB each per custom domain with DNS hosting
Bump - Free 10 Bump email addresses, 1 custom domain
Burnermail – Free 5 Burner Email Addresses, 1 Mailbox, 7 day Mailbox History
Buttondown — Newsletter service. Up to 1,000 subscribers free
CloudMailin - Incoming email via HTTP POST and transactional outbound - 10,000 free emails/month
cloudmersive.com — Email validation and verification API for developers, 2,000 free API requests/month
Contact.do — Contact form in a link (bitly for contact forms) - totally free!
debugmail.io — Easy to use testing mail server for developers
DNSExit - Up to 2 Email addresses under your domain for free with 100MB of storage space. IMAP, POP3, SMTP, SPF/DKIM support.
EmailLabs.io — Send up to 24 000 Email for free every month.
elasticemail.com — 100 free emails/day. 1,000 emails for $0.09 through API (pay as you go).
EmailOctopus - Up to 2,500 subscribers and 10,000 emails per month free
Eva — Verify 5 million emails per day for free using REST API. No sign-ups required.
fakermail.com — Free, temporary email for testing with last 100 email accounts stored.
forwardemail.net — Free email forwarding for custom domains. Create and forward an unlimited amount of email addresses with your domain name (note: You must pay if you use .casa, .cf, .click, .email, .fit, .ga, .gdn, .gq, .loan, .london, .men, .ml, .pl, .rest, .ru, .tk, .top, .work TLDs due to spam)
ImprovMX – Free email forwarding
inboxkitten.com - Free temporary/disposable email inbox, with up-to 3 day email auto-deletes. Open sourced, and can be self-hosted.
inumbo.com — SMTP based spam filter, free for 10 users
mailazy.com — Mailazy is the only simple transactional email service you’ll need. 10500 emails/month free forever (350 emails/day sending limit).
mail-tester.com — Test if email's dns/spf/dkim/dmarc settings are correct, 20 free/month
dkimvalidator.com - Test if email's dns/spf/dkim/dmarc settings are correct, free service by roundsphere.com
mailboxlayer.com — Email validation and verification JSON API for developers. 1,000 free API requests/month
mailcatcher.me — Catches mail and serves it through a web interface
mailchimp.com — 2,000 subscribers and 12,000 emails/month free
MailerLite.com — 1,000 subscribers/month, 12,000 emails/month free
MailerSend.com — Email API, SMTP, 12,000 emails/month free for transactional emails
mailinator.com — Free, public, email system where you can use any inbox you want
mailjet.com — 6,000 emails/month free (200 emails daily sending limit)
mailkitchen — Free for life without commitment, 10,000 emails/month, 1,000 emails/day
Mailnesia - Free temporary/disposable email, which auto visit registration link.
mailsac.com - Free API for temporary email testing, free public email hosting, outbound capture, email-to-slack/websocket/webhook (1,500 monthly API limit)
Mailtie.com - Free Email Forwarding for Your Domain. No registration required. Free Forever.
mailtrap.io — Fake SMTP server for development, free plan with 1 inbox, 50 messages, no team member, 2 emails/second, no forward rules
mailvalidator.io - Verify 300 emails/month for free, real-time API with bulk processing available
mail7.io — Free Temp Email Addresses for QA Developers. Create email addresses instantly using Web Interface or API
moosend.com — Mailing list management service. Free account for 6 months for startups
Mutant Mail – Free 10 Email IDs, 1 Domain, 1 Mailbox. Single Mailbox for All Email IDs.
Outlook.com - Free personal email and calendar
Parsio.io — Free email parser (Forward email, extract the data, send it to your server)
pepipost.com — 30k emails free for first month, then first 100 emails/day free
phplist.com — Hosted version allow 300 emails/month free
postmarkapp.com - 100 emails/month free, unlimited DMARC weekly digests
Proton Mail - Free secure email account service provider with built-in end-to-end encryption. Free 1GB storage.
QuickEmailVerification — Verify 100 emails daily for free on a free tier along with other free APIs like DEA Detector, DNS Lookup, SPF Detector and more.
Sender Up to 15 000 emails/month - Up to 2 500 subscribers
sendgrid.com — 100 emails/day and 2,000 contacts free
sendinblue.com — 9,000 emails/month free
sendpulse.com — 50 emails free/hour, first 12,000 emails/month free
socketlabs.com - 40k emails free for first month, then first 2000 emails/month free
sparkpost.com — First 500 emails/month free
Substack — Unlimited free newsletter service. Start paying when you charge for it.
Tempmailo - Unlimited free temp email addresses. Autoexpire in two days.
HotTempMail - Unlimited free temp email or disposable temporary email addresses. Autoexpires in one day.
temp-mail.io — Free disposable temporary email service with multiple emails at once and forwarding
tinyletter.com — 5,000 subscribers/month free
trashmail.com - Free disposable email addresses with forwarding and automatic address expiration
Tutanota - Free secure email account service provider with built-in end-to-end encryption, no ads, no tracking. Free 1GB storage. Which also partially open source, so you can opt to self-host.
Validator.Pizza — Free API to detect disposable emails
Verifalia — Real-time email verification API with mailbox confirmation and disposable email address detector; 25 free email verifications/day.
verimail.io — Bulk and API email verification service. 100 free verifications/month
Zoho — Started as an e-mail provider but now provides a suite of services out of which some of them have free plans. List of services having free plans :
- Email Free for 5 users. 5GB/user & 25 MB attachment limit, 1 domain.
- Sprints Free for 5 users,5 Projects & 500MB storage.
- Docs — Free for 5 users with 1 GB upload limit & 5GB storage. Zoho Office Suite (Writer,Sheets & Show) comes bundled with it.
- Projects — Free for 3 users, 2 projects & 10 MB attachment limit. Same plan applies to Bugtracker.
- Connect — Team Collaboration free for 25 users with 3 groups, 3 custom apps, 3 Boards, 3 Manuals, 10 Integrations along with channels,events & forums.
- Meeting — Meetings with upto 3 meeting participants & 10 Webinar attendees.
- Vault — Password Management free for Individuals.
- Showtime — Yet another Meeting software for training for a remote session upto 5 attendees.
- Notebook — A free alternative to Evernote.
- Wiki — Free for 3 users with 50 MB storage, unlimited pages, zip backups, RSS & Atom feed, access controls & customisable CSS.
- Subscriptions — Recurring Billing management free for 20 customers/subscriptions & 1 user with all the payment hosting done by Zoho themselves. Last 40 subscription metrics are stored
- Checkout — Product Billing management with 3 pages & up to 50 payments.
- Desk — Customer Support management with 3 agents and private knowledge base, email tickets. Integrates with Assist for 1 remote technician & 5 unattended computers.
- Cliq — Team chat software with 100 GB storage, unlimited users, 100 users per channel & SSO.
- Campaigns
- Forms
- Sign
- Surveys
- Bookings
- Analytics
SimpleLogin – Open source, self-hostable email alias/forwarding solution. Free 5 Aliases, unlimited bandwith, unlimited reply/send. Free for educational staffs (student, researcher, etc).
EmailJS – This is not a full email server, this is just email client which you can use to send emails right from client send without exposing your credentials, the free tier has: 200 monthly requests, 2 email templates, Requests up to 50Kb, Limited contacts history.
Takeout - A constantly updated email service that makes sending emails extremely easy. 500 transactional emails/month free.

Font

dafont - The fonts presented on this website are their authors' property, and are either freeware, shareware, demo versions or public domain.
Everything Fonts - Offers multiple tools; @font-face, Units Converter, Font Hinter and Font Submitter.
Font Squirrel - Freeware fonts that is licensed for commercial work. Hand-selected these typefaces and presenting them in an easy-to-use format.
Google Fonts - Lots of free fonts that are easy and quick to install in a website via a download or a link to Google's CDN.
FontGet - Has a variety of fonts available to download and sorted neatly with tags.
Fontshare - is a free fonts service. It’s a growing collection of professional grade fonts that are 100% free for personal and commercial use.
Befonts - Provides several unqiue fonts for personal or commercial use.
Font of web - Identify all the fonts used on a website and how they are used.
Bunny
- Bunny Fonts - All the Google Fonts with Google Fonts drop-in compatible API. Privacy oriented!.
- Bunny DNS - DNS hosting, 20 million free queries

Forms

Form-Data - No-code forms backend. Spam filter, email notification and auto-respond, webhooks, zapier, redirects, AJAX or POST and more. Free plan offers unlimited forms, 20 submissions/month and additional 2000 submissions with Form-Data badge.
FabForm - Form backend platform for smart developers. Free plan allows 250 form submissions per month. Friendly modern GUI. Integrates with Google Sheets, Airtable, Slack, Email and others.
Form.taxi — Endpoint for HTML forms submissions. With notifications, spam blocker and GDPR-compliant data processing. Free plan for basic usage.
Formcake.com - Form backend for devs, free plan allows unlimited forms, 100 submissions, Zapier integration. No libraries or dependencies required.
Formcarry.com - HTTP POST Form endpoint, Free plan allows 100 submissions per month.
formingo.co- Easy HTML forms for static websites, get started for free without registering an account. Free plan allows 500 submissions per month, customizable reply-to email address.
FormKeep.com - Unlimited forms with 50 submissions per month, spam protection, email notification and a drag and drop designer that can export HTML. Additional features include custom field rules, teams and integrations to Google Sheets, Slack, ActiveCampaign and Zapier.
formlets.com — Online forms, unlimited single page forms/month, 100 submissions/month, email notifications.
formspark.io - Form to Email service, free plan allows unlimited forms, 250 submissions per month, support by Customer assistance team.
Formspree.io — Send email using an HTTP POST request. Free tier limits to 50 submissions per form per month.
Formsubmit.co — Easy form endpoints for your HTML forms. Free Forever. No registration required.
getform.io - Form backend platform for designers and developers, 1 form, 50 submissions, Single file upload, 100MB file storage.
HeroTofu.com - Forms backend with bot detection and encrypted archive. Forward submissions via UI to email, Slack, or Zapier. Use your own frontend, no server code required. Free plan gives unlimited forms and 100 submissions per month.
HeyForm.net - Drag and drop online form builder. Free tier lets you create unlimited forms and collect unlimited submissions. Comes with pre-built templates, anti-spam, and 100MB file storage.
Hyperforms.app — Create form to email and more in seconds and without backend code. The Personal account gives you up to 50 form submissions per month for free.
Kwes.io - Feature rich form endpoint. Works great with static sites. Free plan includes up 1 website with up to 50 submissions per month.
Pageclip - Free plan allows one site, one form, 1,000 submissions per month.
Qualtrics Survey — Create professional forms & survey using this first class tool. 50+ expert-designed survey templates. Free Account has limit of 1 active survey, 100 responses/survey & 8 response types.
smartforms.dev - Powerful and easy form backend for your website, forever free plan allows 50 submissions per month, 250MB file storage, Zapier integration, CSV/JSON export, custom redirect, custom response page, Telegram & Slack bot, single email notifications.
staticforms.xyz - Integrate HTML forms easily without any server side code for free. After user submits the form an email will be sent to your registered address with form content.
stepFORM.io - Quiz and Form Builder. Free plan has 5 forms, up to 3 steps per form, 50 responses per month.
Typeform.com — Include beautifully designed forms on websites. Free plan allows only 10 fields per form and 100 responses per month.
WaiverStevie.com - Electronic Signature platform with a REST API. Receive notifications with webhooks. Free plan watermarks signed documents, but allows unlimited envelopes + signatures.
Web3Forms - Contact forms for Static & JAMStack Websites without writing backend code. Free plan allows Unlimited Forms, Unlimited Domains & 250 Submissions per month.
WebAsk - Survey and Form Builder. Free plan has 3 surveys per account, 100 responses per month, 10 elements per survey.
Wufoo - Quick forms to use on websites. Free plan has a limit of 100 submissions each month.
formpost.app - Free, unlimited Form to Email service. Setup custom redirect, auto response, webhooks etc for free.
Formester.com - Share and embed unique-looking forms on your website—no limits on the number of forms created or features restricted by the plan. Get up to 100 submissions every month for free.

CDN and Protection

bootstrapcdn.com — CDN for bootstrap, bootswatch and fontawesome.io
cdnjs.com — Simple. Fast. Reliable. Content delivery at its finest. cdnjs is a free and open-source CDN service trusted by over 11% of all websites, powered by Cloudflare.
Cloudflare
- CDN along with free SSL
- Free DNS for unlimited number of domains
- Firewall rules and pagerules
- Analytics
- Email forwarding
- Free Unmetered Rate Limiting - 1 rule per domain
- Cloudflare Pages — Free web hosting (JAMstack platform) for frontend developers to collaborate and deploy websites. 1 build at a time, 500 builds/month, unlimited sites, unlimited requests, unlimited bandwidth.
- Cloudflare Workers — Deploy serverless code for free on Cloudflare's global network. 100,000 free requests per day with a workers.dev subdomain.
- Quick Tunnels — Create a tunnel from your server to a publically accessible, randomly-generated trycloudflare.com domain. No account required.
developers.google.com — The Google Hosted Libraries is a content distribution network for the most popular, Open Source JavaScript libraries
GraphCDN - Scale, inspect & protect your GraphQL API. 5m requests per month for free.
jsdelivr.com — A free, fast, and reliable CDN for open source. Supports npm, GitHub, WordPress, Deno, and more.
Microsoft Ajax — The Microsoft Ajax CDN hosts popular third-party JavaScript libraries such as jQuery and enables you to easily add them to your Web application
ovh.ie — Free DDoS protection and SSL certificate
PageCDN.com - Offers free Public CDN for everyone, and free Private CDN for opensource / nonprofits.
Skypack — The 100% Native ES Module JavaScript CDN. Free for 1 million requests per domain, per month.
raw.githack.com — A modern replacement of rawgit.com which simply hosts file using Cloudflare
section.io — A simple way to spin up and manage a complete Varnish Cache solution. Supposedly free forever for one site
statically.io — CDN for Git repos (GitHub, GitLab, Bitbucket), WordPress-related assets and images
toranproxy.com — Proxy for Packagist and GitHub. Never fail CD. Free for personal use, 1 developer, no support
UNPKG — CDN for everything on npm
weserv — An image cache & resize service. Manipulate images on-the-fly with a worldwide cache.
Namecheap Supersonic — Free DDoS protection
Gcore
- CDN — Global content delivery network, 1 TB and 1 million requests per month free.
- DNS Hosting — Free DNS hosting.

PaaS

anvil.works - Web app development with nothing but Python. Free tier with unlimited apps.
appharbor.com — A .Net PaaS that provides 1 free worker
configure.it — Mobile app development platform, free for 2 projects, limited features but no resource limits
codenameone.com — Open source, cross platform, mobile app development toolchain for Java/Kotlin developers. Free for commercial use with unlimited number of projects
Cyclic - Fullstack app hosting - Push to Github for build and deploy of Javascript/Node.js apps. Includes: Authentication, Cron jobs, Custom Domains, Database, Storage and Streaming logs. Paid plans include: branch based environments, multi-regional deployments and increased limits.
Deno Deploy - Distributed system that runs JavaScript, TypeScript, and WebAssembly at the edge, worldwide. Free tier includes 100,000 requests per day and 100 GiB data transfer per month.
Deta – Deploy unlimited number of Node.js and Python apps for free. Includes free DBs, Auth and email.
domcloud.co – Linux hosting service that also provides CI/CD with GitHub, SSH and MariaDB/Postgres database. Free version has 1 GB storage and 1 GB network/month limit and limited to a free domain.
encore.dev — Backend framework using static analysis to provide automatic infrastructure, boilerplate free code, and more. Includes free cloud hosting for hobby projects.
gigalixir.com - Gigalixir provide 1 free instance that never sleeps, and free-tier PostgreSQL database limited to 2 connections, 10, 000 rows and no backups, for Elixir/Phoenix apps.
Glitch — Free public hosting with features such as code sharing and real-time collaboration. Free plan has 1000 hours/month limit.
Krucible — Krucible is a platform for creating Kubernetes clusters for testing and development. Free tier accounts come with 25 cluster-hours per month.
Mendix — Rapid Application Development for Enterprises, unlimited number of free sandbox environments supporting unlimited users, 0.5 GB storage and 1 GB RAM per app. Also Studio and Studio Pro IDEs are allowed in free tier.
m3o.com - A cloud platform for API services development. M3O is a fully managed Micro as a Service offering focusing on Go microservices development in the Cloud. Free tier provides enough to run 5 services and collaborate with others.
Okteto Cloud - Managed Kubernetes service designed for remote development. Free developer accounts come with 5 Kubernetes namespaces, 3Gi/pod with a maximum of 8Gi/namespace, 1CPU/pod with a maximum of 4CPUs/namespace and 5GB Disk space. The apps sleep after 24 hours of inactivity.
opeNode — Free Node.js hosting for Open Source projects. 100 GB Bandwidth/month with 100 MB memory & 1000 MB storage. Deploy using CLI or existing Git repository.
outsystems.com — Enterprise web development PaaS for on-premise or cloud, free "personal environment" offering allows for unlimited code and up to 1 GB database
pipedream.com - An integration platform built for developers. Develop any workflow, based on any trigger. Workflows are code, which you can run for free. No server or cloud resources to manage.
pythonanywhere.com — Cloud Python app hosting. Beginner account is free, 1 Python web application at your-username.pythonanywhere.com domain, 512 MB private file storage, one MySQL database
Serverless Cloud - Serverless Cloud lets you build Serverless APIs, DBs and Storage by using infrastrucure from code approach(no yaml, no infrastructure configuration). The product is provided by Serverless Inc. and currently under public preview.
fly.io - Fly is a platform for applications that need to run globally. It runs your code close to users and scales compute in cities where your app is busiest. Write your code, package it into a Docker image, deploy it to Fly's platform and let that do all the work to keep your app snappy. Free for side projects, $10/mo of service credit that automatically applies to any paid service. And if you ran really small virtual machines, credits will go a long way.
Divio - A platform to manage cloud application deploying only using Docker. Available free subscription for development projects, Requires card and no custom domain support.
Koyeb - Koyeb is a developer-friendly serverless platform to deploy apps globally. Seamlessly run Docker containers, web apps, and APIs with git-based deployment, native autoscaling, a global edge network, and built-in service mesh and discovery. Koyeb provides two nano services to run your apps with its forever-free tier and also sponsors open-source projects with free resources.
Railway - Railway is an infrastructure platform where you can provision infrastructure, develop with that infrastructure locally, and then deploy to the cloud. 1GB Disk, 512 MB RAM, limited to $5 or 500 hours of usage monthly available for free.
Napkin - FaaS with 500Mb of memory, a default timeout of 15 seconds and 25,000 free API calls/month, rate-limited to 5 calls/second.
Meteor Cloud — Galaxy hosting. Meteor's own platform-as-a-service for Meteor apps which includes a free MongoDB Shared Hosting and automatic SSL.
Northflank — Build and deploy microservices, jobs and managed databases with a powerful UI, API & CLI. Seamlessly scale containers from version control and external Docker registries. Free tier includes 2 services, 2 cron jobs and 1 database.
Porter - a fully-managed PaaS that lets teams automate DevOps. The free basic tier for porter cloud offers management of 1 cluster with up to 10 vCPU and 20 GB memory.
YepCode - All-in-one platform to connect APIs and services in a serverless environment. It brings all the agility and benefits of NoCode tools, but with all the power of use programming languages. Free tier includes 1.000 yeps.
mogenius - A code-to-cloud platform to easily deploy any service, from static website to advanced microservice architectures. mogenius comes with fully managed hyper-scaling cloud resources, Kubernetes, CI/CD and security from Cloudflare. Free tier includes 0.5 CPU core, 1 GB RAM, 5 GB traffic, 2 GB SSD persistent storage.
WayScript- WayScript is an internal developer platform (IDP) that allows software engineers to self-serve secure, cloud based (Docker + k8s) developer environments at any time. Remove the need to get resources provisioned on a one off basis. Quickly build tools, apps, APIs, dashboards, schedule cron tasks and more. 100 hours of free runtime per month.

BaaS

back4app.com - Back4App is an easy-to-use, flexible and scalable backend based on Parse Platform.
backendless.com — Mobile and Web Baas, with 1 GB file storage free, push notifications 50000/month, and 1000 data objects in table.
BMC Developer Program — The BMC Developer Program provides documentation and resources to build and deploy digital innovations for your enterprise. Access to a comprehensive, personal sandbox which includes the platform, SDK, and a library of components that can be used to build and tailor apps.
convex.dev - Reactive backend as a service, hosting your data (documents with relationships & serializable ACID transactions), serverless functions, and websockets to stream updates to various clients. Free for small projects - up to 1M records, 5M function calls per month.
darklang.com - Hosted language combined with editor and infrastructure. Free during the beta, generous free tier planned after beta.
Firebase — Firebase helps you build and run successful apps. Free Spark Plan offers Authentication, Hosting, Firebase ML , Realtime Database,Cloud Storage,Testlab. A/B Testing, Analytics, App Distribution, App Indexing, Cloud Messaging (FCM), Crashlytics, Dynamic Links, In-App Messaging, Performance Monitoring, Predictions, and Remote Config are always-free.
Flutter Flow — Build your Flutter App UI without writing a single line of code. Also has a Firebase integration. Free plan includes full access to UI Builder and Free templates.
getstream.io — Build scalable newsfeeds, activity streams, chat and messaging in a few hours instead of weeks
hasura.io — Hasura extends your existing databases wherever it is hosted and provides an instant GraphQL API that can be securely accessed for web, mobile, and data integration workloads. Free for 1GB/month of data pass-through.
iron.io — Async task processing (like AWS Lambda) with free tier and 1-month free trial
netlicensing.io - A cost-effective and integrated Licensing-as-a-Service (LaaS) solution for your software on any platform from Desktop to IoT and SaaS. Basic Plan for FREE while you are a student.
nhost.io - Serverless backend for web and mobile apps. Free plan includes: PostgreSQL, GraphQL (Hasura), Authentication, Storage, and Serverless Functions.
onesignal.com — Unlimited free push notifications
paraio.com — Backend service API with flexible authentication, full-text search and caching. Free for 1 app, 1GB app data.
posthook.io — Job Scheduling Service. Allows you to schedule requests for specific times. 500 scheduled requests/month free.
progress.com — Mobile backend, starter plan has unlimited requests/second, with 1 GB of data storage. Enterprise application support
pubnub.com — Free push notifications for up to 1 million messages/month and 100 active daily devices
pushbots.com — Push notification service. Free for up to 1.5 million pushes/month
pushcrew.com — Push notification service. Unlimited notifications up to 2000 Subscribers
pusher.com — Free, unlimited push notifications for 2000 monthly active users. A single API for iOS and Android devices.
engagespot.co — Notification infrastructure for developers. Free for upto 100 monthly active users.
pushtechnology.com — Real-time Messaging for browsers, smartphones and everyone. 100 concurrent connections. Free 10 GB data/month
quickblox.com — A communication backend for instant messaging, video and voice calling and push notifications
restspace.io - Configure a server with services for auth, data, files, email API, templates etc, then compose into pipelines and transform data.
Salesforce Developer Program — Build apps Lightning fast with drag and drop tools. Customize your data model with clicks. Go further with Apex code. Integrate with anything using powerful APIs. Stay protected with enterprise-grade security. Customize UI with clicks or any leading-edge web framework. Free Developer Program gives access to the full Lightining Platform.
ServiceNow Developer Program — Rapidly build, test, and deploy applications that make work better for your organization. Free Instance & access early previews.
simperium.com — Move data everywhere instantly and automatically, multi-platform, unlimited sending and storage of structured data, max. 2,500 users/month
stackstorm.com — Event-driven automation for apps, services and workflows, free without flow, access control, LDAP,...
streamdata.io — Turns any REST API into an event-driven streaming API. Free plan up to 1 million messages and 10 concurrent connections.
Supabase — The Open Source Firebase Alternative to build backends. Free Plan offers Authentication, Realtime Database & Object Storage.
tyk.io — API management with authentication, quotas, monitoring and analytics. Free cloud offering
zapier.com — Connect the apps you use, to automate tasks. 5 zaps, every 15 minutes and 100 tasks/month
LeanCloud — Mobile backend. 1GB of data storage, 256MB instance, 3K API requests/day, 10K pushes/day are free. (API is very similar to Parse Platform)
BudiBase - Budibase is an open-source low-code platform for creating internal apps in minutes. Supports PostgreSQL, MySQL, MSSQL, MongoDB, Rest API, Docker, K8s

Web Hosting

Alwaysdata — 100 MB free web hosting with support for MySQL, PostgreSQL, CouchDB, MongoDB, PHP, Python, Ruby, Node.js, Elixir, Java, Deno, custom web servers, access via FTP, WebDAV and SSH; mailbox, mailing list and app installer included.
Awardspace.com — Free web hosting + a free short domain, PHP, MySQL, App Installer, Email Sending & No Ads.
Bubble — Visual programming to build web and mobile apps without code, free with Bubble branding.
Deploy Now — Deploy smarter. Deploy faster. Deploy Now. - Deploy up to 3 web projects from your GitHub repository for free.
DigitalOcean - Build and deploy 3 static sites for free on the App Platform Starter tier.
Drive To Web — Host directly to the web from Google Drive & OneDrive. Static sites only. Free forever. One site per Google/Microsoft account.
Fenix Web Server - A developer desktop app for hosting sites locally and sharing them publically (in realtime). Work however you like, using its beautiful user interface, API, and/or CLI.
Free Hosting — Free Hosting With PHP 5, Perl, CGI, MySQL, FTP, File Manager, POP E-Mail, free sub-domains, free domain hosting, DNS Zone Editor, Web Site Statistics, FREE Online Support and many more features not offered by other free hosts.
Freehostia — FreeHostia offers free hosting services incl. an industry-best Control Panel & a 1-click installation of 50+ free apps. Instant setup. No forced ads.
hostman.com — Deploy up to 3 static sites from your GitHub repository for free.
Neocities — Static, 1 GB free storage with 200 GB Bandwidth.
Netlify — Builds, deploy and hosts static site/app free for, 100 GB data and 100 GB/month bandwidth.
pantheon.io — Drupal and WordPress hosting, automated DevOps and scalable infrastructure. Free for developers and agencies
readthedocs.org — Free documentation hosting with versioning, PDF generation and more
render.com — Unified cloud to build and run apps and sites with free SSL, a global CDN, private networks, auto-deploys from Git, and completely free plans for web services, databases, and static web pages.
SourceForge — Find, Create and Publish Open Source software for free
Stormkit — Integrate building, deploying and hosting seamlessly with your git flow of your JAMStack or Node.JS app. 50 GB bandwith and 10m requests for free per month including free SSL.
surge.sh — Static web publishing for Front-End developers. Unlimited sites with custom domain support
tilda.cc — One site, 50 pages, 50 MB storage, only the main pre-defined blocks among 170+ available, no fonts, no favicon and no custom domain
txti.es — Quickly create web pages with markdown.
Vercel — Build, deploy, and host web apps with free SSL, global CDN, and unique Preview URLs each time you git push. Perfect for Next.js and other Static Site Generators.
Versoly — SaaS focussed website builder - unlimited websites, 70+ blocks, 5 templates, custom CSS, favicon, SEO and forms. No custom domain.
Qoddi - PaaS service similar to Heroku with a developer-centric approach and all inclusive features. Free tier for static assets, staging and developer apps.
FreeFlarum - Community powered free Flarum hosting for up to 250 users (donate to remove watermark from footer).
fleek.co - Build modern sites and apps on the Open Web and its protocols seamlessly free for, unlimited websites and 50 GB/month bandwidth.

DNS

1.1.1.1 - Free public DNS Resolver which is fast and secure (encrypt your DNS query), provided by CloudFlare. Useful to bypass your internet provider's DNS blocking, prevent DNS query spying, and to block adult & malware content. Can also be used via API. Note: Just a DNS resolver, not a DNS hoster.
1984.is — Free DNS service with API, and lots of other free DNS features included.
biz.mail.ru — Free email and DNS hosting for up to 5,000 users
cloudns.net — Free DNS hosting up to 1 domain with 50 records
dns.he.net — Free DNS hosting service with Dynamic DNS Support
dnspod.com — Free DNS hosting.
duckdns.org — Free DDNS with up to 5 domains on the free tier. With configuration guides for various setups.
dynu.com — Free dynamic DNS service
freedns.afraid.org — Free DNS hosting. Also provide free subdomain based on numerous public user contributed domains. Get free subdomains from "Subdomains" menu after signing up.
luadns.com — Free DNS hosting, 3 domains, all features with reasonable limits
namecheap.com — Free DNS. No limit on number of domains
nextdns.io - DNS based firewall, 300K free queries monthly
noip — a dynamic dns service that allows up to 3 hostnames free with confirmation every 30 days
ns1.com — Data Driven DNS, automatic traffic management, 500k free queries
nsupdate.info — Free and open-source Dynamic DNS service
pointhq.com — Free DNS hosting on Heroku.
sslip.io — Free DNS service that when queried with a hostname with an embedded IP address returns that IP address.
zilore.com — Free DNS hosting.
zoneedit.com — Free DNS hosting with Dynamic DNS Support.
zonewatcher.com — Automatic backups and DNS change monitoring. 1 domain free
huaweicloud.com – Free DNS hosting by Huawei
Hetzner – Free DNS hosting from Hetzner with API support.
Glauca – Free DNS hosting for up to 3 domains and DNSSEC support

Domain

freenom — Free .tk,.ml,.ga,.cf and .gq domain.
eu.org — Free eu.org domain. Request is usually approved in 14 days.
js.org - Free js.org subdomains for GitHub Pages for the JavaScript community.
js.cool - Free js.cool subdomains for GitHub Pages and Vercel.
pp.ua — Free pp.ua subdomains.
thedev.id — A free thedev.id subdomain for developers.
is-a.dev — Free is-a.dev subdomain for developers.
is-a-good.dev — A free is-a-good-dev subdomain for developers.
cluster.ws & wip.la — Free cluster.ws and wip.la subdomains for developers.
Dee.al — Free .dee.al,.gal.aw,.devz.id instant domain for your blog site & Other, ENJOY
is-an.app - Free .is-an.app and .1bt.uk subdomains (wildcards, A, NS, AAAA, CNAME, TXT records are supported).

IaaS

backblaze.com — Backblaze B2 cloud storage. Free 10 GB (Amazon S3-like) object storage for unlimited time
filebase.com - S3 Compatible Object Storage Powered by Blockchain. 5 GB free storage for unlimited duration.
scaleway — S3-Compatible Object Storage. Free 75 GB storage and external outgoing traffic.
Storj — Decentralised Private Cloud Storage for Apps and Developers. Free plan provides 1 Project, 150 GB storage, 150 GB bandwidth per month.
Tebi - S3 compatibility object storage.Free 25 GB storage and 250GB outbound transfer.
Idrive e2 - S3 compatibility object storage. 10 GB free storage and 10 GB download bandwidth per month.
C2 Object Storage - S3 compatibility object storage. 15 GB free storage and 15 GB download per month.

DBaaS

airtable.com — Looks like a spreadsheet, but it's a relational database, unlimited bases, 1,200 rows/base and 1,000 API requests/month
Astra — Cloud Native Cassandra as a Service with 80GB free tier
bit.io — Managed PostgreSQL database service. 3 database, 3GB storage per database, 1 CPU and 1GB Memory (burst), 1B rows queried per month
cloudamqp.com — RabbitMQ as a Service, up to 1M messages/month and 20 connections free
codehooks.io — JavaScript serverless API/backend and database service with functions, Mongdb-ish queries, key/value lookups, a job system and a message queue. 1 instance free per project, 5000 records and 5000 calls/month free, 3 developers included. No credit-card required.
elephantsql.com — PostgreSQL as a service, 20 MB free
FaunaDB — Serverless cloud database, with native GraphQL, multi-model access and daily free tiers up to 100 MB
HarperDb — Serverless cloud database, with dynamic schema based on JSON, 3000 IOPS with 1GB storage
Upstash — Serverless Redis with free tier up to 10,000 requests per day, 256MB max database size, and 20 concurrent connections
MongoDB Atlas — free tier gives 512 MB
redsmin.com — Online real-time monitoring and administration service for Redis, Monitoring for 1 Redis instance free
redislabs - Free 30MB redis instance
MemCachier — Managed Memcache service. Free for up to 25MB, 1 Proxy Server and basic analytics
scalingo.com — Primarily a PaaS but offers a 128MB to 192MB free tier of MySQL, PostgreSQL or MongoDB
SeaTable — Flexible, Spreadsheet-like Database built by Seafile team. unlimited tables, 2,000 lines, 1-month versioning, up to 25 team members.
skyvia.com — Cloud Data Platform, offers free tier and all plans are completely free while in beta
StackBy — One tool that brings together flexibility of spreadsheets, power of databases and built-in integrations with your favorite business apps. Free plan includes unlimited users, 10 stacks, 2GB attachment per stack.
TiDB Cloud — TiDB is an open source MySQL compatible distributed HTAP RDBMS. TiDB Cloud provides one-year free Developer Tier, 500 MiB of OLTP storage, and 500 MiB of OLAP Storage.
InfluxDB — Timeseries database, free up to 3MB/5 minutes writes, 30MB/5 minutes reads and 10,000 cardinalities series
Quickmetrics — Timeseries database with dashboard included, free up to 10,000 events/day and total of 5 metrics.
restdb.io - a fast and simple NoSQL cloud database service. With restdb.io you get schema, relations, automatic REST API (with MongoDB-like queries) and an efficient multi-user admin UI for working with data. Free plan allows 3 users, 2500 records and 1 API requests per second.
cockroachlabs.com — Free CockroachDB up to 5GB and 1vCPU (limited request units)
Neo4j Aura — Managed native Graph DBMS / analytics platform with a Cypher query language and a REST API. Limits on graph size (50k nodes, 175k relationships).
Dgraph Cloud — Managed native Graph DBMS with a GraphQL API. Limited to 1 MB data transfer per day.
TigerGraph Cloud — Managed native Graph DBMS / analytics platform with a SQL-like graph query language and a REST API. 1 TG.Free instance on AWS (4 vCPU, 7.5 GB memory, 50 GB disk) or on GCP(2 vCPU, 8 GB memory, 128 GB disk). Free instance sleeps after 1 hour of inactivity.
TerminusX — Managed free service for TerminusDB, a document and graph database written in Prolog and Rust. Free for dev, paid service for enterprise deployments and support.
Macrometa - a noSQL database, Pub/Sub, event processing, and serverless edge computing platform for building geo-distributed and real-time applications. Free dev account gives access to 10,000 Operations/Day & 200MB Storage.
Planetscale - PlanetScale is a MySQL compatible, serverless database platform powered by Vitess, 1 databases for free with 1 Production branch and 1 Development branch, 5GB storage, 1 Billion rows read/mo per database, and 10 Million rows written/mo per database.
YugabyteDB - YugabyteDB is a distributed SQL database compatible with PostgresSQL. The cloud free tier is a 2 vCPU, 4GB RAM, 10GB Disk.
filess.io - filess.io is a platform where you can create 1 database of the following DBMS for free: MySQL, MariaDB, MongoDB, PostgreSQL.

Tunneling, WebRTC, Web Socket Servers and Other Routers

conveyor.cloud — Visual Studio extension to expose IIS Express to the local network or over a tunnel to a public URL.
Hamachi — LogMeIn Hamachi is a hosted VPN service that lets you securely extend LAN-like networks to distributed teams with free plan allows unlimited networks with up to 5 peoples
localhost.run — Expose locally running servers over a tunnel to a public URL.
localtunnel — Expose locally running servers over a tunnel to a public URL. Free hosted version, and open source.
ngrok.com — Expose locally running servers over a tunnel to a public URL.
Radmin VPN — Connect multiple computers together via a VPN enabling LAN-like networks. Unlimited peers. (Hamachi alternative)
segment.com — Hub to translate and route events to other third-party services. 100,000 events/month free
STUN — Session Traversal of User Datagram Protocol [UDP] Through Network Address Translators [NATs])
- Google STUN — stun:stun.l.google.com:19302
- Twilio STUN — stun:global.stun.twilio.com:3478?transport=udp
Tailscale — Zero config VPN, using the open source WireGuard protocol. Installs on MacOS, iOS, Windows, Linux, and Android devices. Free plan for personal use with 20 devices.
webhookrelay.com — Manage, debug, fan-out and proxy all your webhooks to public or internal (ie: localhost) destinations. Also, expose servers running in a private network over a tunnel by getting a public HTTP endpoint (https://yoursubdomain.webrelay.io <----> http://localhost:8080).
Hookdeck — Develop, test and monitor your webhooks from a single place. 100K requests and 100K attempts per month with 3 days retention.
Xirsys — Global network of STUN / TURN servers with a generous free tier.
ZeroTier — FOSS managed virtual Ethernet as a service. Unlimited end-to-end encrypted networks of 100 clients on free plan. Clients for desktop/mobile/NA; web interface for configuration of custom routing rules and approval of new client nodes on private networks
LocalXpose — Reverse proxy that enables you to expose your localhost servers to the internet. Free plan has 15 mintues tunnel life time.