ejabberd vs Element X
A side-by-side comparison of two self-hosted matrix & xmpp options — licensing, setup difficulty, resource needs, and what each one replaces.
ejabberd
Robust, scalable XMPP messaging server
VS
Element X
Next-generation fast Matrix client for mobile
| Feature | ejabberd | Element X |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 91 · Excellent | 82 · Excellent |
| Category | Matrix & XMPP | Matrix & XMPP |
| License | GPL-2.0 | AGPL-3.0 |
| Language | Erlang | Swift |
| Setup difficulty | Hard | Easy |
| Min. RAM | 512 MB | 64 MB |
| Deployment | docker, bare-metal | bare-metal, source |
| GitHub stars | ★ 6,732 | ★ 947 |
| First released | 2002 | 2022 |
| Replaces | Slack, WhatsApp | WhatsApp, Signal |
What are ejabberd and Element X?
ejabberd
ejabberd is a robust and scalable XMPP server powering instant messaging, presence, and real-time communication. It targets operators running large messaging deployments. It is deployed via Docker or native packages.
- Highly scalable XMPP server
- Clustering support
- Many extension modules
- MQTT and SIP support
Element X
Element X is a rewritten, sliding-sync-powered Matrix client focused on speed and a streamlined mobile experience. It connects to any Matrix homeserver for chat and calls.
- Built on Matrix Rust SDK
- Very fast sync via sliding sync
- End-to-end encryption
- Native Element Call integration
ejabberd vs Element X: key differences
Ejabberd is written in Erlang, while Element X is built with Swift. Licensing differs — GPL-2.0 for ejabberd versus AGPL-3.0 for Element X. Element X is the lighter option, starting around 64 MB of RAM against 512 MB for ejabberd. Ejabberd is the more established project (first released 2002), while Element X arrived in 2022. Ejabberd has the considerably larger community, at 6,732 GitHub stars versus 947. Ejabberd lists first-class Docker deployment; Element X does not.
Why pick each one
Choose ejabberd if…
- Extremely scalable
- Battle-tested
- Standards-based
Watch out for
- XMPP UX depends on clients
- Advanced config is complex
Choose Element X if…
- Released under the AGPL-3.0 license
- Easy to set up — beginner-friendly
- Written in Swift
- Tiny footprint — runs in 64 MB RAM
Watch out for
- Mobile-focused
- Requires a Matrix homeserver
Frequently asked questions
Is ejabberd or Element X better?
Neither is universally better. ejabberd has the larger community, while Element X is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are ejabberd and Element X free and open-source?
Yes. ejabberd is licensed under GPL-2.0 and Element X under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run ejabberd and Element X with Docker?
ejabberd: yes. Element X: check the project docs for container support.
Which is lighter on resources, ejabberd or Element X?
Element X has the smaller minimum footprint at 64 MB of RAM, compared to about 512 MB for ejabberd. Real-world usage depends on library size, user count, and enabled features.