Live editing over USB
Changes are on the keyboard the moment you make them. Try, then keep or revert.
Click a key, change it, and it's on your keyboard instantly. Free and open source.
Changes are on the keyboard the moment you make them. Try, then keep or revert.
Legends follow your Mac's keyboard layout (English, German, French, Nordic, Icelandic…), including Shift and Option characters.
Mission Control, Spotlight, screenshots, media, volume and brightness.
A MacBook-style top row on your Fn layer.
See exactly what every key sends.
Automatic backups, plus export and import of whole layouts.
macOS 15+ · Apple Silicon & Intel · Signed & notarized
Designed and built by BookFlow.
Over USB, using ZMK's Studio protocol, implemented from scratch.
Tested with US, British, German, French, Nordic and Icelandic.
Signed and notarized by Apple, open source under the MIT license.