Element X vs Metronome IM
A side-by-side comparison of two self-hosted matrix & xmpp options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Element X | Metronome IM |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 82 · Excellent | 42 · Fair |
| Category | Matrix & XMPP | Matrix & XMPP |
| License | AGPL-3.0 | MIT |
| Language | Swift | Lua |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 128 MB |
| Deployment | bare-metal, source | docker, bare-metal, source |
| GitHub stars | ★ 947 | ★ 175 |
| First released | 2022 | 2012 |
| Replaces | WhatsApp, Signal | Slack, WhatsApp |
What are Element X and Metronome IM?
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
Metronome IM
Metronome IM is a fork of Prosody that focuses on additional features and out-of-the-box configuration for XMPP communication. It supports modern messaging extensions and microblogging.
- Prosody-based XMPP server
- Built-in PEP microblogging
- Modern XEP support
- Lightweight Lua implementation
Element X vs Metronome IM: key differences
Element X is written in Swift, while Metronome IM is built with Lua. Licensing differs — AGPL-3.0 for Element X versus MIT for Metronome IM. Element X is the lighter option, starting around 64 MB of RAM against 128 MB for Metronome IM. Metronome IM is the more established project (first released 2012), while Element X arrived in 2022. Element X has the considerably larger community, at 947 GitHub stars versus 175. Metronome IM lists first-class Docker deployment; Element X does not.
Why pick each one
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
Choose Metronome IM if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Written in Lua
- Tiny footprint — runs in 128 MB RAM
Watch out for
- Smaller community than Prosody
- Niche project
Frequently asked questions
Is Element X or Metronome IM better?
Element X is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Metronome IM if its specific feature set fits your needs better.
Are Element X and Metronome IM free and open-source?
Yes. Element X is licensed under AGPL-3.0 and Metronome IM under MIT. Both can be self-hosted at no software cost.
Can I run Element X and Metronome IM with Docker?
Element X: check the project docs for container support. Metronome IM: yes.
Which is lighter on resources, Element X or Metronome IM?
Element X has the smaller minimum footprint at 64 MB of RAM, compared to about 128 MB for Metronome IM. Real-world usage depends on library size, user count, and enabled features.