Element Call
Element Call starts moving to new LiveKit transports and falls back to remote SFUs when needed.
Comparison · Meetings
BigBlueButton vs SRS
A side-by-side editorial comparison of BigBlueButton and SRS — release velocity, themes, recent moves, and the top alternatives to consider.
BigBlueButton vs SRS: at a glance
What is BigBlueButton?
BigBlueButton 4.0 rc.5 drops Etherpad and makes BlockNote the only notes editor.
BigBlueButton 4.0.0-rc.5 removes Etherpad, so upgrading uninstalls bbb-etherpad and bbb-pads and leaves BlockNote as the only shared-notes editor. It also moves Node components to Node.js 24, switches the client to the 1.0 pre-release plugin SDK, and redesigns the poll and quiz panels. It follows two security-only candidates, and the project still recommends 3.0.x for production.
What is SRS?
SRS opens a 7.0 line built on a Go proxy tier, and drops features it no longer wants to carry.
SRS shipped the stable 6.0 line's first release on 12 August and, three hours later, the first development build of 7.0. The 6.0 line is now in pure maintenance — the r1 changelog is seven merges of DVR, WebRTC and edge fixes. Everything new is in 7.0-d0: RTSP playback, RTMPS, IPv6 across every protocol, HEVC in both directions between RTMP and WebRTC, and HLS fMP4 segments for HEVC and LL-HLS.
BigBlueButton vs SRS: editorial side-by-side
BigBlueButton
5.0MEETINGS
BigBlueButton 4.0 rc.5 drops Etherpad and makes BlockNote the only notes editor.
◆ Current state
BigBlueButton 4.0.0-rc.5 removes Etherpad, so upgrading uninstalls bbb-etherpad and bbb-pads and leaves BlockNote as the only shared-notes editor. It also moves Node components to Node.js 24, switches the client to the 1.0 pre-release plugin SDK, and redesigns the poll and quiz panels. It follows two security-only candidates, and the project still recommends 3.0.x for production.
◆ Where it's heading
The 4.0 cycle is removing legacy components one by one: SIP.js audio went in beta.4, and Etherpad goes now. Between the removals, security-only candidates harden the new LiveKit audio and BlockNote notes surfaces. The plugin SDK reaching a 1.0 pre-release suggests the extension API is being frozen for GA.
◆ Prediction
Expect at least one more candidate to settle the plugin SDK 1.0 change and Etherpad removal before 4.0.0 GA. The pace of security advisories makes the exact timing unclear.
SRS
6.3MEETINGS
SRS opens a 7.0 line built on a Go proxy tier, and drops features it no longer wants to carry.
◆ Current state
SRS shipped the stable 6.0 line's first release on 12 August and, three hours later, the first development build of 7.0. The 6.0 line is now in pure maintenance — the r1 changelog is seven merges of DVR, WebRTC and edge fixes. Everything new is in 7.0-d0: RTSP playback, RTMPS, IPv6 across every protocol, HEVC in both directions between RTMP and WebRTC, and HLS fMP4 segments for HEVC and LL-HLS.
◆ Where it's heading
The project is trading breadth of legacy surface for a narrower, better-covered core. 7.0-d0 removes the embedded GB28181 SIP server, multi-threading, Cygwin, and most configuration hot reload, while introducing a Go proxy server and origin-cluster architecture alongside the C++ media core. Protocol coverage keeps generalizing — each release makes a codec or an address family a property of the server rather than of one delivery path.
◆ Prediction
Expect the 7.0 line to run a long alpha and beta train the way 6.0 did, with the Go proxy and origin clustering carrying most of the remaining work and 6.0 continuing to receive backported fixes in parallel.
Alternatives to BigBlueButton and SRS
Other Meetings products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either BigBlueButton or SRS.
JW Player
JW Player moves CMAF VOD into the dashboard, adds AV1, and opens Broadcast Live to audio-only feeds.
Fourwaves
Fourwaves follows its participant inbox with a week of admin fixes and security hardening.
HOMER
HOMER 11.0.369 fixes S3 auth on Ceph-based storage and stops compaction memory growth.
rtpengine
rtpengine opens the mr26.3 branch with a rollback message and leaner call state.
Nextcloud Talk Desktop
Nextcloud Talk Desktop 2.3.3 adds accessibility options and bundles Talk v25.0.6.
See all BigBlueButton alternatives → · See all SRS alternatives →
Recent activity from BigBlueButton and SRS
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 19d agoBigBlueButtonBigBlueButton 4.0 rc.5 removes Etherpad and moves to Node.js 24
- 26d agoBigBlueButtonBigBlueButton 4.0 rc.4 patches audio and notes security flaws
- 1mo agoBigBlueButtonBigBlueButton 4.0 rc.3 hardens LiveKit reconnection
- 1mo agoBigBlueButtonBigBlueButton 4.0 rc.2 fixes cross-meeting security flaws
- 1mo agoBigBlueButtonBigBlueButton 4.0 rc.1 completes the LiveKit audio migration ⚡
- 2mo agoBigBlueButtonBigBlueButton 4.0 beta.5 overhauls mobile layout
- 2mo agoSRSSRS 7.0-d0: Go proxy tier, RTSP playback, IPv6 across protocols ⚡
- 2mo agoSRS6.0-r1: DVR, WebRTC and edge fixes on the stable line
- 10mo agoSRSSRS 6.0 goes stable with H.265 across RTMP, HLS, TS and SRT ⚡
- 11mo agoSRS6.0-b3: use-after-free and HLS cleanup fixes
- 1y agoSRS6.0-b2: configurable SRT stream IDs and a WHIP transcoding fix
- 1y agoSRS6.0-b1: RTC crash fixes, Windows binary dropped
Frequently asked questions
What is the difference between BigBlueButton and SRS?
They serve adjacent needs but don't currently overlap on shipped themes. SRS is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is BigBlueButton better than SRS?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. SRS is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Meetings products to evaluate alongside.
What are the best alternatives to BigBlueButton?
Top BigBlueButton alternatives in Meetings are ranked by recent ship velocity. Browse the "BigBlueButton alternatives" section above for the current picks, or visit /alternatives/bigbluebutton for the full list with editorial commentary on each.
What are the best alternatives to SRS?
Top SRS alternatives in Meetings are ranked by recent ship velocity. Browse the "SRS alternatives" section above for the current picks, or visit /alternatives/srs for the full list with editorial commentary on each.