Last checked October 15, 2026
BigBlueButton
BigBlueButton is built for teaching: webcam, slides, breakout rooms, and recording in one HTML client. It is LGPL-3.0. You host it, or you pay a provider. There is no official free public cloud on the scale of Zoom.
Open sourceLGPL-3.0EducatorsEnterprises
WebSelf-host
Free tier
The software is free. Hosting is not included.
Hosted
No hosted price recorded.
Self-host
Hard. Official docs expect a dedicated Ubuntu server with substantial RAM. It is a poor fit for a tiny shared VPS.
Drop-in scores
Sources checked
https://ditchly.co/software/bigbluebutton