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Comparison · Meetings
BigBlueButton vs Fourwaves
A side-by-side editorial comparison of BigBlueButton and Fourwaves — release velocity, themes, recent moves, and the top alternatives to consider.
BigBlueButton vs Fourwaves: at a glance
What is BigBlueButton?
BigBlueButton's 4.0 beta swaps out its own media stack — LiveKit is now the default, SIP.js is gone.
Two lines run in parallel. The stable 3.0 branch gets maintenance iterations every few weeks — security fixes, breakout-room and screenshare repairs, audio fixes against LiveKit — while 4.0 betas carry the structural work. The latest beta makes LiveKit the default media stack and deletes the legacy SIP.js audio bridge, replaces the shared notes engine with BlockNote, and moves the JVM services to Java 21. The layout system was rebuilt one beta earlier, with the Unified layout promoted to default.
What is Fourwaves?
A daily drip of conference-platform polish, with finance filtering and attendee self-service leading.
Fourwaves ships small, single-line changes to its academic conference platform on an almost daily rhythm, publishing each under a bare date. The recent window splits three ways: organization-admin finance tooling, where transactions can now be filtered by organization and by payment gateway; attendee self-service, including a sidebar listing entries already submitted and the ability to add presentations to a personal agenda from the session list; and a run of navigation and consistency fixes. No single change reshapes the product.
BigBlueButton vs Fourwaves: editorial side-by-side
BigBlueButton
3.8MEETINGS
BigBlueButton's 4.0 beta swaps out its own media stack — LiveKit is now the default, SIP.js is gone.
◆ Current state
Two lines run in parallel. The stable 3.0 branch gets maintenance iterations every few weeks — security fixes, breakout-room and screenshare repairs, audio fixes against LiveKit — while 4.0 betas carry the structural work. The latest beta makes LiveKit the default media stack and deletes the legacy SIP.js audio bridge, replaces the shared notes engine with BlockNote, and moves the JVM services to Java 21. The layout system was rebuilt one beta earlier, with the Unified layout promoted to default.
◆ Where it's heading
This is a multi-year replacement of the plumbing under a conferencing platform, done in public and in order: introduce LiveKit alongside the old bridge, fix audio against it across 3.0 point releases, then cut the old path out in a 4.0 beta. The same pattern shows in the client — the Unified layout arrived opt-in in 3.0.19 and became the default in beta.3. Around the core swap, the surface is being tidied: app gallery search and pinning, notification redesign, a request-to-present flow, configurable plugin buttons.
◆ Prediction
With the legacy audio bridge removed and Java 21 in place, expect the remaining 4.0 betas to be stabilization rather than new subsystems, and expect self-hosters to hit LiveKit deployment issues that generate a run of point releases after 4.0 lands.
Fourwaves
5.0MEETINGS
A daily drip of conference-platform polish, with finance filtering and attendee self-service leading.
◆ Current state
Fourwaves ships small, single-line changes to its academic conference platform on an almost daily rhythm, publishing each under a bare date. The recent window splits three ways: organization-admin finance tooling, where transactions can now be filtered by organization and by payment gateway; attendee self-service, including a sidebar listing entries already submitted and the ability to add presentations to a personal agenda from the session list; and a run of navigation and consistency fixes. No single change reshapes the product.
◆ Where it's heading
The work concentrates where operators running many events feel friction — untangling payments that arrive through shared gateways, and cutting how much attendees must re-enter across registration and submission forms. A parallel thread smooths the event-day surface, with a live-and-upcoming session panel and consistent back links, icons, and headings across detail pages. Fixes and features are interleaved continuously rather than gathered into releases, so the cadence reads as steady maintenance with incremental reach.
◆ Prediction
Expect more of the same two increments — transaction visibility for organizations running events across shared gateways, and reducing what attendees must re-enter — rather than a headline capability.
Alternatives to BigBlueButton and Fourwaves
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 Fourwaves.
Webex
The feed is a marketing blog; the actual GA announcements arrive between the thought leadership
HOMER
HOMER 11's DuckLake rearchitecture is in its hardening phase, shipping near-daily.
mediasoup
mediasoup's Rust line is shipping subchannel fixes every few days and nothing else
Daily.co
One real release is buried in a feed that is mostly captured page furniture.
CasparCG Server
Broadcast playout server reaches for HDR and sets a hardware floor to get there
See all BigBlueButton alternatives → · See all Fourwaves alternatives →
Recent activity from BigBlueButton and Fourwaves
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoFourwavesFix: Website section no longer appears in program chair nav
- 6d agoFourwavesRegistration forms list an attendee's existing entries
- 7d agoFourwavesFilter transactions by payment gateway
- 8d agoFourwavesFilter transactions by organization across shared gateways
- 13d agoFourwavesFix: re-adding a removed Tracks field to a submission form
- 14d agoFourwavesAdd presentations to your agenda from the session list
- 19d agoBigBlueButton4.0 beta.4: LiveKit becomes the default media stack, SIP.js bridge removed ⚡
- 2mo agoBigBlueButton4.0 beta.3: layout system rebuilt, Unified layout becomes default
- 4mo agoBigBlueButton3.0.23: breakout-room fixes, security patches, renamed bbb-web properties
- 6mo agoBigBlueButton3.0.22: client and core fixes, security patches
- 6mo agoBigBlueButton3.0.21: security fixes and minor client improvements
- 6mo agoBigBlueButton3.0.20: LiveKit audio fixes and security patches
Frequently asked questions
What is the difference between BigBlueButton and Fourwaves?
They serve adjacent needs but don't currently overlap on shipped themes. Fourwaves is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 1. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is BigBlueButton better than Fourwaves?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Fourwaves is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 1. 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 Fourwaves?
Top Fourwaves alternatives in Meetings are ranked by recent ship velocity. Browse the "Fourwaves alternatives" section above for the current picks, or visit /alternatives/fourwaves for the full list with editorial commentary on each.