Shared Whiteboard
Draw with a peer on a live browser whiteboard over a direct WebRTC data channel.
Free browser tool
No Matrix computer needed
✓ No account or card
✓ Use the result right away
✓ Task-specific limits below
Workspace
Use shared whiteboard
Runs in this browser tab
Connect with one person
Both people open this page. One creates an invitation and shares its code. The other pastes it, creates an answer, and sends that answer back. The first person pastes the answer to connect.
Codes contain network connection details, including possible IP addresses. Share them only with someone you trust. Cloudflare STUN helps find a direct path; restricted networks may need TURN and may not connect here.
Ready to connect
Shared whiteboard
Draw after connecting. Strokes appear on your peer’s board as you finish each line.
Draw with a mouse, touch, or pen. A new connection starts a new board.
How to use it
Connect two browsers with invitation and answer codes, then draw strokes that appear on both boards.
What to check
The board is temporary and resets when the connection closes. A public STUN server sees connection metadata; restrictive networks may not connect.
Review the result before using it in a published page, application, or agent configuration.
Quick answers
Frequently asked questions
Will a shared whiteboard remain after the call ends?
No. The board is temporary and resets when the direct browser connection closes. Save a copy separately if you need a record.
How does a peer join the whiteboard?
Exchange invitation and answer codes to establish a WebRTC data channel. Both browsers must stay open while drawing together.
Keep exploring
Related free tools
Need this work to keep going?
Matrix gives agents a private cloud computer for files, connected tools, and work that continues after you close your laptop. The browser tool above is free; a Matrix computer requires a paid plan.