head to head · open source
SIP.js vs routr
SIP.js has 2,104 GitHub stars, 724 forks, 97 open issues and last shipped 5 months ago. routr has 1,725 stars, 184 forks, 29 open issues and last shipped 2 days ago. SIP.js leads on adoption by 22% (2,104 vs 1,725 stars). SIP.js is written in TypeScript under MIT; routr is written in TypeScript under MIT. SIP.js has attracted 34% as many forks as stars, routr 11%. routr 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
| SIP.js | routr | |
|---|---|---|
| GitHub stars | ★ 2.1K | ★ 1.7K |
| License | MIT | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-06-15 | 2026-11-01 |
| Forks | ⑂ 724 | ⑂ 184 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SIP.js if
- You weight community size — 2.1K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick routr if
- You want the routr feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and routr fits your workflow better
About SIP.js
SIP Library for JavaScript Create real time peer to peer audio and video sessions via WebRTC Utilize SIP in your web application via SIP over WebSocket Send instant messages and view presence Support early media, hold and transfers Send DTMF RFC 2833 or SIP INFO Share your screen or desktop Written in TypeScript Runs in all major web browsers Compatible with standards compliant servers including Asterisk and FreeSWITCH Demo Want see it in action? The project website, sipjs.com, has a live demo. Looking for code to get started with? This repository includes demonstrations which run in a web browser. Usage To…
read the full SIP.js overview →
About routr
Routr is a lightweight sip proxy, location server, and registrar that provides a reliable and scalable SIP infrastructure for telephony carriers, communication service providers, and integrators. Content Community Should you try Routr? Contact us Features The official handbook Deployment Docker Kubernetes Gitpod Getting started with the CTL First steps with the NodeSDK Custom Processors and Middleware Documentation Bugs and feedback Sponsors Contributing License Community We are building Routr in the open. The best to communicate with us is via GitHub Discussions. Special Announcement: We now have a Discord…
read the full routr overview →
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Frequently asked questions
Is SIP.js or routr more popular?
SIP.js has 2,104 GitHub stars and routr has 1,725. SIP.js has the larger community by that measure.
Are SIP.js and routr free?
Both are open source. SIP.js is licensed under MIT and routr under MIT. Neither carries a licence fee.
What is the difference between SIP.js and routr?
SIP.js is written in TypeScript and routr 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, SIP.js or routr?
Choose SIP.js if you want the larger community (2,104 stars) or its MIT licence terms. Choose routr if its feature set, stack or MIT licence fits better. Both are self-hostable.