Bigbluebutton by bigbluebutton
A complete web conferencing system for virtual classes and more!
About Bigbluebutton
From the project's README at github.com/bigbluebutton/bigbluebutton. Lightly cleaned for readability; for the full source see the upstream repo.
BigBlueButton ============= BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn.
BigBlueButton supports real-time sharing of audio, video, slides (with whiteboard annotations), chat, and the screen. Instructors can engage remote students with polling, emojis, multi-user whiteboards, shared notes, and breakout rooms. During the session, BigBlueButton generates analytics that are visible to moderators in the Learning Analytics Dashboard.
Presenters can record and playback content for later sharing with others.
We designed BigBlueButton for online learning, it can be used for many other applications as well. The educational use cases for BigBlueButton are
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 9.1k | github.com/bigbluebutton/bigbluebutton |
| GitHub forks | 6.0k | github.com/bigbluebutton/bigbluebutton |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 16.0 years | since May 2010 |
| Last commit | 3 days ago | May 4, 2026 |
| Releases shipped | 272 | last: 10 days ago |
| Security policy | SECURITY.md | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
Security advisories
CVE-2026-27736. Replaces these paid SaaS
Bigbluebutton is one of the open-source alternatives to:
Ready to self-host Bigbluebutton?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
Similar open-source projects
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