head to head · open source
webrtc vs SIP.js
webrtc has 16,785 GitHub stars, 1,887 forks, 125 open issues and last shipped yesterday. SIP.js has 2,096 stars, 728 forks, 97 open issues and last shipped 3 months ago. webrtc leads on adoption by 701% (16,785 vs 2,096 stars). webrtc is written in Go under MIT; SIP.js is written in TypeScript under MIT. webrtc has attracted 11% as many forks as stars, SIP.js 35%. webrtc was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| webrtc | SIP.js | |
|---|---|---|
| GitHub stars | ★ 17K | ★ 2.1K |
| License | MIT | MIT |
| Written in | Go | TypeScript |
| Last push | 2026-09-18 | 2026-06-15 |
| Forks | ⑂ 1.9K | ⑂ 728 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick webrtc if
- You weight community size — 17K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick SIP.js if
- You want the SIP.js feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and SIP.js fits your workflow better
About webrtc
Pion WebRTC is a pure Go implementation of the WebRTC API, aimed at Go developers who need real time audio, video, and data channels running inside their own applications rather than inside a browser tab or a C++ codebase.
read the full webrtc overview →
About SIP.js
SIP.js is an MIT licensed TypeScript library that gives web applications a JavaScript signaling stack for SIP over WebSocket, so browsers can place and receive real time audio and video sessions through WebRTC.
read the full SIP.js overview →
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Frequently asked questions
Is webrtc or SIP.js more popular?
webrtc has 16,785 GitHub stars and SIP.js has 2,096. webrtc has the larger community by that measure.
Are webrtc and SIP.js free?
Both are open source. webrtc is licensed under MIT and SIP.js under MIT. Neither carries a licence fee.
What is the difference between webrtc and SIP.js?
webrtc is written in Go and SIP.js in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, webrtc or SIP.js?
Choose webrtc if you want the larger community (16,785 stars) or its MIT licence terms. Choose SIP.js if its feature set, stack or MIT licence fits better. Both are self-hostable.