BigBlueButton is a free and open-source web conferencing platform for real-time video meetings, screen sharing and collaboration.
For a live demo, check out https://my.bigbluebutton.com/.
Here is the source code: https://github.com/bigbluebutton/bigbluebutton
BigBlueButton is released under the GNU Lesser General Public License (LGPL).
It can be used stand-alone or integrated directly into Tiki Wiki CMS Groupware, bringing real-time video meetings into your existing WikiSuite workflow.
Key Features
- Multi-user whiteboard with real-time annotation and multimedia uploads
- Breakout rooms for small-group work
- Polls, emoji reactions and raise-hand
- Public and private chat
- Screen sharing and multi-user webcams
- Shared notes (collaborative, Etherpad-based)
- Session recording and playback
- Closed captioning / live transcription
More info at https://bigbluebutton.org/.
BigBlueButton started in 2007 at Carleton University, originally the "Blindside" project by Richard Alam. Blindside Networks was formed in 2009 to support it, and the BigBlueButton Foundation was later created to oversee community development. BigBlueButton 2.2 (2020) was a full rewrite of the client and server for HTML5, the MongoDB dependency was removed as of 3.0, and the project reached version 4.0 in October 2026.
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