head to head · open source
kafka vs webrtc
kafka has 34,117 GitHub stars, 15,657 forks, 574 open issues and last shipped yesterday. webrtc has 16,874 stars, 1,916 forks, 125 open issues and last shipped yesterday. kafka leads on adoption by 102% (34,117 vs 16,874 stars). kafka is written in Java under Apache-2.0; webrtc is written in Go under MIT. kafka has attracted 46% as many forks as stars, webrtc 11%. kafka was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (streaming), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| kafka | webrtc | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 17K |
| License | Apache-2.0 | MIT |
| Written in | Java | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 16K | ⑂ 1.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick kafka if
- You weight community size — 34K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick webrtc if
- You want the webrtc feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and webrtc fits your workflow better
About kafka
Apache Kafka is an open source distributed event streaming platform used by thousands of companies for high performance data pipelines, streaming analytics, data integration, and mission critical applications. You need to have Java installed. We build and test Apache Kafka with Java versions 17 and 25. The release parameter in javac is set to 11 for the clients and streams modules, and 17 for the rest, ensuring compatibility with their respective minimum Java versions. Similarly, the release parameter in scalac is set to 11 for the streams modules and 17 for the rest. Scala 2.13 is the only supported version in…
read the full kafka overview →
About webrtc
Pion WebRTC A pure Go implementation of the WebRTC API New Release Pion WebRTC v4.0.0 has been released! See the release notes to learn about new features and breaking changes. If you aren't able to upgrade yet check the tags for the latest v3 release. We would love your feedback! Please create GitHub issues or Join the Discord to follow development and speak with the maintainers. Usage Go Modules are mandatory for using Pion WebRTC. So make sure you set export GO111MODULE=on , and explicitly specify /v4 (or an earlier version) when importing. example applications contains code samples of common things people…
read the full webrtc overview →
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Frequently asked questions
Is kafka or webrtc more popular?
kafka has 34,117 GitHub stars and webrtc has 16,874. kafka has the larger community by that measure.
Are kafka and webrtc free?
Both are open source. kafka is licensed under Apache-2.0 and webrtc under MIT. Neither carries a licence fee.
What is the difference between kafka and webrtc?
kafka is written in Java and webrtc in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, kafka or webrtc?
Choose kafka if you want the larger community (34,117 stars) or its Apache-2.0 licence terms. Choose webrtc if its feature set, stack or MIT licence fits better. Both are self-hostable.