Use Collaborative Blackboard in your browser

Sketch, ideate, and share ideas on a live WebRTC blackboard with instant room links and smooth drawing controls. It runs directly in your browser, so you can start straight away without creating an account or installing anything.

Simple to start

Open the workspace above, choose your options, and get the result when you need it.

Made for any screen

The controls are designed to stay usable on phones, tablets, and desktops.