Free, private, browser-based .ithmb file decoder.
Try it live → ithmb-codec.dev | How to open .ithmb files (guide)
Built with AI assistance — see CREDITS.md
ITHMB files are Apple iThumbnail images found in iPod Classic, iPod Nano, and other legacy Apple devices — thumbnail-sized album art, photos, and menu graphics that the iPod's UI reads directly from its disk. The format is undocumented and varies across devices and firmware versions. This project decodes them in your browser via WebAssembly, powered by ithmb-core from the parent repo Ithmb-Codec.
- Free. No cost, no signup, no account needed.
- Private. Everything runs in your browser via WebAssembly. Your files never leave your machine unless you explicitly opt in to contribute anonymous format data.
- Batch decode. Decode multiple .ithmb files at once.
- Open source. MIT licensed. Fork it, audit it, improve it.
Go to https://ithmb-codec.dev/ithmb-decoder/ and drag your .ithmb files onto the page. They decode instantly — no upload, no waiting. Download individual images or grab them all as a ZIP archive.
Found an .ithmb file that doesn't decode? Open an issue on the codec repo.
Enjoying the tool? Buy me a coffee.
Rust, WebAssembly, and TypeScript.