Image, PDF, developer, text, data, audio and design tools. Nothing is uploaded, no account, no ads, works offline. Each one is a free, open-source alternative to a paid or upload-based web tool.
Every tool is a single static page: open it, drop your files, download the result. Files are processed on your device and never sent anywhere; after the first visit each page works offline and can be installed as an app. All of them were written by Claude Code from a spec, clean-room, tested headless in Chromium, with the full source on GitHub. How and why.