capslang - CapsLock to switch keyboard layout in Windows

This small windowless program allow you swich keyboard layout with CapsLock key. While non-standard keyboard layout will bright Scroll Lock indicator. Usual Caps Lock function available via Shift + CapsLock key combination. I recommend set "To turn off Caps Lock -- SHIFT key" in Windows Advanced Key Settings.

Forked from capslang.

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Quick Install

irm https://raw.githubusercontent.com/edanko/capslang/main/install.ps1 | iex

Options

# Scheduled task (default, runs with admin privileges)
irm https://raw.githubusercontent.com/edanko/capslang/main/install.ps1 | iex

# Startup folder (no admin required)
irm https://raw.githubusercontent.com/edanko/capslang/main/install.ps1 | iex -Args "-m 1"

# Quiet mode (no prompts)
irm https://raw.githubusercontent.com/edanko/capslang/main/install.ps1 | iex -Args "-q"

Other options

Manual Installation

1. Download capslang-windows-x86_64.zip
2. Extract capslang.exe
3. Place it in %LOCALAPPDATA%\capslang\capslang.exe

Option A: Scheduled Task

• Runs with highest privileges
• Works in all applications (including admin apps)

schtasks /create /tn CapsLang /sc ONLOGON /tr "%LOCALAPPDATA%\capslang\capslang.exe" /rl HIGHEST /delay 0000:30 /f

Or via GUI:

1. Open Task Scheduler (taskschd.msc)
2. Click "Create Basic Task"
3. Name it "CapsLang" and click Next
4. Select "When I log on" and click Next
5. Select "Start a program" and click Next
6. Browse to capslang.exe location and click Next
7. Check "Open the Properties dialog for this task when I click Finish" checkbox
8. Click Finish
9. In Properties dialog, check "Run with highest privileges" checkbox
10. Click OK
11. Right-click the task and select "Run" to start it immediately

Option B: Startup Folder (Shortcut)

• No admin required
• Runs when you log in
• Limited to your user account

$target = "$env:LOCALAPPDATA\capslang\capslang.exe"
$shortcut = "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\CapsLang.lnk"
$ws = (New-Object -ComObject WScript.Shell).CreateShortcut($shortcut)
$ws.TargetPath = $target
$ws.WorkingDirectory = "$env:LOCALAPPDATA\capslang"
$ws.Save()

Or you can copy the capslang.exe to your Startup (%AppData%\Microsoft\Windows\Start Menu\Programs\Startup) folder.

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Uninstallation

irm https://raw.githubusercontent.com/edanko/capslang/main/uninstall.ps1 | iex

Other options

Manual

del "%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\CapsLang.lnk"
schtasks /Delete /TN "CapsLang" /F
rmdir /s /q "%LOCALAPPDATA%\capslang"

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Usage

Action	Key
Switch layout	CapsLock
Normal CapsLock	Shift + CapsLock
Exit program	Ctrl + Alt + L

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Building from Source

Just run make build-release to compile it. Binary will be in zig-out/bin folder.

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License

GNU GPL v3