✦ One webcam · nothing installed · nothing uploaded
Presentation Brain
Your notes, on your palm. Type your notes and they bloom into a glowing constellation — open your hand to unfold it, make a fist to collapse it to a seed, rotate your wrist to spin the whole thing. Built to be filmed.
Everything runs in your browser. Your camera never leaves your machine — hand tracking happens on the page itself, and your notes stay local too.
✦The Brain
Open the app, click Start camera and allow it, raise your hand — your notes become a living graph you sculpt mid-air. Map a folder or your Markdown notes, and pinch a ringed node to open the file. Free, right here.
Open the Brain how to use the Brain✦Full edition
The complete instrument, by invitation: slides driven by hand — PDF and image decks, clean projector output — plus the macOS helper for .pptx / .key, PowerPoint, Keynote, music and volume.
Unlock with passphrase or request access✦How to use
The five-minute guide to the full edition: from picking your file to projecting clean slides over HDMI — with the gesture chart and troubleshooting.
Read the guide or compare editions✦What works where
Right here, in the browser — free
- Hand tracking — camera, skeleton, live on the page
- Brain graph — your typed notes as a living constellation
- Gesture sculpting — bloom, collapse, reshape, spin
- Three palettes — Aurora, Ember, Ice; framed to be filmed
- Private by design — notes and camera never leave the page
Full edition — by invitation
- Slides by hand — tilt to flip, pinch and fist poses
- PDF & image decks — plus a clean HDMI projector window
- PowerPoint & Keynote files — via the free macOS helper
- Drive external apps — PowerPoint, Keynote, Google Slides
- Music & volume — raise a fist to turn it up
Have a passphrase? Unlock the full edition → Otherwise request access — the workflow is walked through in the guide.
✦Cloud edition — on the horizon
Pair your phone and laptop through the cloud and keep decks and notes in your own Google Drive — present from any machine, anywhere. The camera still never leaves your device; only pairing signals travel.
Email only — used once, to tell you when the cloud beta opens. No newsletter, no tracking. By joining you agree to the Terms of Use · Privacy Policy.
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