onsip/SIP.js
A simple, intuitive, and powerful JavaScript signaling library observed · 2026-08-28
Health v2 · maintenance only
62/100
- Activity 87
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4639
- days_rel: n/a
- days_push: 79
- n_releases_24m: 0
Adoption not part of the score
2094 stars · 727 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
SIP.js is a JavaScript/TypeScript SIP signaling library for building WebRTC applications with audio/video calling, messaging, and presence. It supports SIP over WebSocket and works with standards-compliant servers like Asterisk and FreeSWITCH.
Use cases
- add sip-based audio and video calls to a web app
- build a browser-based webrtc softphone
- send and receive sip instant messages in the browser
- implement click-to-call on a website
- connect a web app to an asterisk or freeswitch pbx
- share screen or desktop during web calls
- send dtmf tones from a web application
When to choose
- you need a full sip signaling stack in a web browser
- you want webrtc calling with hold, transfer, and early media support
- your backend is a standards-compliant sip server like asterisk or freeswitch
- you want a simple high-level API (SimpleUser) or a full low-level SIP API
When to avoid
- you need support for non-browser environments like React Native or Node.js out of the box
- you need a non-SIP signaling protocol
- you need extensive media processing beyond basic session description handling
- you need guaranteed support for older or niche browsers
Facets
library · maturity active
websocket http-client sdk web-development networking apis browser sip webrtc voip signaling audio-video-calls instant-messaging telephony real-time nodejs javascript typescript
5 sources
- readme: https://github.com/onsip/SIP.js · fetched 2026-08-28 · d5f3c5979111
- homepage: https://sipjs.com · fetched 2026-08-29 · bfb4248962bc
- site_page: https://sipjs.com/aboutus · fetched 2026-08-29 · 87638af4feef
- registry_npm: https://registry.npmjs.org/sip.js · fetched 2026-08-29 · 5d86a10b6bed
- site_page: https://sipjs.com/faq · fetched 2026-08-29 · 8e689264e440
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| onsip/SIP.js | main | 62 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem