P2P Collaborative Canvas

Real-time synchronized drawing over WebRTC. No servers, directly P2P.

Use a long, unique passphrase — it's the only thing protecting your session. Anyone who guesses it can find your room and read everything you draw.

How it works: The passphrase is used to derive a secure encryption key and a daily routing topic. We use ntfy.sh to anonymously handshake, and from then on, all pen strokes are transmitted directly device-to-device.

Looking for a peer…

Checking ntfy for an existing offer.

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🔒 Direct E2EE Channel Open —