Fractal vs Spectrum
A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Fractal
GNOME-native Matrix messaging client
VS
Spectrum
Open-source platform for building online communities
| Feature | Fractal | Spectrum |
|---|---|---|
| Category | Matrix & XMPP | Forums & Community |
| License | GPL-3.0 | BSD-3-Clause |
| Language | Rust | JavaScript |
| Setup difficulty | Easy | Hard |
| Min. RAM | 256 MB | 2,048 MB |
| Deployment | binary, source | docker, bare-metal |
| GitHub stars | ★ 900 | ★ 10,837 |
| First released | 2017 | 2017 |
| Replaces | Slack, Discord | Discord, Discourse |
Why pick each one
Choose Fractal if…
- Released under the GPL-3.0 license
- Easy to set up — beginner-friendly
- Written in Rust
- Tiny footprint — runs in 256 MB RAM
Choose Spectrum if…
- Released under the BSD-3-Clause license
- First-class Docker support for quick deployment
- Mature project with 10.8k GitHub stars
- Written in JavaScript
Frequently asked questions
Is Fractal or Spectrum better?
Neither is universally better. Spectrum has the larger community, while Fractal is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Fractal and Spectrum free and open-source?
Yes. Fractal is licensed under GPL-3.0 and Spectrum under BSD-3-Clause. Both can be self-hosted at no software cost.
Can I run Fractal and Spectrum with Docker?
Fractal: check the project docs for container support. Spectrum: yes.