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BigBlueButton is an open source web conferencing system for on-line learning.

We believe that every student with a web browser should have access to a high-quality on-line learning experience

We intend to make that possible with BigBlueButton.

For Developers

The BigBlueButton project is supported by a community of developers that care about good design and a streamlined user experience.

See API examples for how to integrate BigBlueButton with your project.

Try BigBlueButton

Join a demo session on this server.

New to BigBlueButton? Watch these videos.


Record and Playback

BigBlueButton can record your sessions for later playback by students.


The whiteboard controls let you annotate and call out key parts of your presentation.

Desktop Sharing

You can broadcast your desktop for all users to see (requires lastest version of Java for presenter only).

Integrated VoIP

BigBlueButton voice conferencing supports WebRTC audio out-of-the-box. All your students need is a headset to participate.


You can upload any PDF presentation or MS office document. BigBlueButton keeps everyone in sync with your current slide, zoom, pan, and mouse pointer.

Web Cam

Multiple users can share their webcam at the same time. There is no built-in limit on the number of simultaneously active webcams.

Watch These Videos To Get Started Quickly