New from Graehl Arts
Atpiano Free preview
Turn an acoustic-piano performance into a session you can listen to, see, and revisit. Record or import audio, then follow synchronized notes, a piano roll, keyboard, and optional sheet music.
Featured Projects
Useful software, built with care and available now.
Machine Control Open source
A cross-platform test lab for coding agents, used to develop and exercise JSTorrent, RSTorrent, Atpiano, and other Graehl Arts applications across real operating systems and devices.
JSTorrent Available
A modern BitTorrent client for desktop, Chromium browsers, Android, ChromeOS, and iOS, powered by one shared TypeScript engine.
200 OK Web Server Available
The cross-platform successor to Web Server for Chrome, rebuilt by the original author for desktop, Android, and ChromeOS.
PlaysVideo Available
Play MKV, MP4, AVI, and more in your browser. No install and no upload—remuxing and transcoding happen locally on your device.
YepAnywhere Available
A self-hosted, end-to-end encrypted browser interface for supervising Claude Code and Codex from another computer, tablet, or phone.