head to head · open source
Sequin vs SIP.js
Sequin has 2,223 GitHub stars, 153 forks, 71 open issues and last shipped 8 months ago. SIP.js has 2,104 stars, 724 forks, 97 open issues and last shipped 5 months ago. Sequin leads on adoption by 6% (2,223 vs 2,104 stars). Sequin is written in Elixir under MIT; SIP.js is written in TypeScript under MIT. Sequin has attracted 7% as many forks as stars, SIP.js 34%. SIP.js 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
| Sequin | SIP.js | |
|---|---|---|
| GitHub stars | ★ 2.2K | ★ 2.1K |
| License | MIT | MIT |
| Written in | Elixir | TypeScript |
| Last push | 2026-02-23 | 2026-06-15 |
| Forks | ⑂ 153 | ⑂ 724 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sequin if
- You weight community size — 2.2K stars and counting
- You want the MIT license terms
- Your stack matches Elixir
- 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 Sequin
Documentation · Website · Discord · Slack · Blog Sequin Sequin is the fastest change data capture (CDC) platform for Postgres. Sequin makes it easy to stream Postgres to streaming platforms, queues, search indexes, and more (e.g. Kafka, GCP Pub/Sub, another Postgres, etc.). You can backfill existing rows and stream new changes in real time. Sequin is a standalone Docker container that you can deploy next to your Postgres database. For production deployments on AWS, see the deployment/ directory for Terraform infrastructure as code templates. Sequin is open source. To help us make this project great, tell us what…
read the full Sequin overview →
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 →
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Frequently asked questions
Is Sequin or SIP.js more popular?
Sequin has 2,223 GitHub stars and SIP.js has 2,104. Sequin has the larger community by that measure.
Are Sequin and SIP.js free?
Both are open source. Sequin is licensed under MIT and SIP.js under MIT. Neither carries a licence fee.
What is the difference between Sequin and SIP.js?
Sequin is written in Elixir 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, Sequin or SIP.js?
Choose Sequin if you want the larger community (2,223 stars) or its MIT licence terms. Choose SIP.js if its feature set, stack or MIT licence fits better. Both are self-hostable.