JSXC vs MongooseIM
A side-by-side comparison of two self-hosted matrix & xmpp options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | JSXC | MongooseIM |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 12 · At risk | 85 · Excellent |
| Category | Matrix & XMPP | Matrix & XMPP |
| License | MIT | GPL-2.0 |
| Language | TypeScript | Erlang |
| Setup difficulty | Medium | Hard |
| Min. RAM | 64 MB | 1,024 MB |
| Deployment | bare-metal, source | docker, bare-metal, source |
| GitHub stars | ★ 731 | ★ 1,760 |
| First released | 2013 | 2012 |
| Replaces | Slack | Slack, WhatsApp |
What are JSXC and MongooseIM?
JSXC
JSXC is a real-time XMPP chat application that runs in the browser and can be integrated into web platforms like Nextcloud and SOGo. It supports OTR and OMEMO encryption.
- Browser-based XMPP client
- OTR and OMEMO encryption
- Integrates with Nextcloud
- Audio and video via WebRTC
MongooseIM
MongooseIM is an enterprise-grade XMPP server written in Erlang, designed for high scalability and reliability. It supports clustering, REST APIs, and modern messaging extensions.
- Built for massive scale
- Clustering and high availability
- GraphQL and REST admin APIs
- Modern XEP support
JSXC vs MongooseIM: key differences
JSXC is written in TypeScript, while MongooseIM is built with Erlang. Licensing differs — MIT for JSXC versus GPL-2.0 for MongooseIM. JSXC is the lighter option, starting around 64 MB of RAM against 1,024 MB for MongooseIM. MongooseIM has the considerably larger community, at 1,760 GitHub stars versus 731. MongooseIM lists first-class Docker deployment; JSXC does not.
Why pick each one
Choose JSXC if…
- Released under the MIT license
- Written in TypeScript
- Tiny footprint — runs in 64 MB RAM
Watch out for
- Needs an XMPP backend
- Integration-focused
Choose MongooseIM if…
- Released under the GPL-2.0 license
- First-class Docker support for quick deployment
- Active community (1.8k GitHub stars)
- Written in Erlang
Watch out for
- Complex deployment
- Requires Erlang knowledge to extend
Frequently asked questions
Is JSXC or MongooseIM better?
Neither is universally better. MongooseIM has the larger community, while JSXC is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are JSXC and MongooseIM free and open-source?
Yes. JSXC is licensed under MIT and MongooseIM under GPL-2.0. Both can be self-hosted at no software cost.
Can I run JSXC and MongooseIM with Docker?
JSXC: check the project docs for container support. MongooseIM: yes.
Which is lighter on resources, JSXC or MongooseIM?
JSXC has the smaller minimum footprint at 64 MB of RAM, compared to about 1,024 MB for MongooseIM. Real-world usage depends on library size, user count, and enabled features.