Fractal vs Synapse
A side-by-side comparison of two self-hosted matrix & xmpp options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Fractal | Synapse |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Category | Matrix & XMPP | Matrix & XMPP |
| License | GPL-3.0 | AGPL-3.0 |
| Language | Rust | Python |
| Setup difficulty | Easy | Hard |
| Min. RAM | 256 MB | 1,024 MB |
| Deployment | binary, source | docker, bare-metal |
| GitHub stars | ★ 900 | ★ 4,643 |
| First released | 2017 | 2014 |
| Replaces | Slack, Discord | Slack, Discord, WhatsApp |
What are Fractal and Synapse?
Fractal
Fractal is a Matrix client designed for the GNOME desktop and written in Rust with GTK. It supports end-to-end encryption, multiple accounts, and integrates cleanly with the GNOME ecosystem.
- GNOME-native GTK interface
- End-to-end encryption
- Multi-account support
- Adaptive layout
Synapse
Synapse is the reference homeserver implementation for Matrix, an open protocol for decentralized, federated, secure chat. It targets communities and organizations running their own messaging infrastructure. It is deployed via Docker or native packages.
- Federated Matrix homeserver
- End-to-end encrypted rooms
- Bridges to other networks
- Many compatible clients
Fractal vs Synapse: key differences
Fractal is written in Rust, while Synapse is built with Python. Licensing differs — GPL-3.0 for Fractal versus AGPL-3.0 for Synapse. Fractal is the lighter option, starting around 256 MB of RAM against 1,024 MB for Synapse. Synapse is the more established project (first released 2014), while Fractal arrived in 2017. Synapse has the considerably larger community, at 4,643 GitHub stars versus 900. Synapse lists first-class Docker deployment; Fractal does not.
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 Synapse if…
- Open federated protocol
- Strong encryption
- Bridges to other chats
Watch out for
- Resource and maintenance heavy
- Complex to operate well
Frequently asked questions
Is Fractal or Synapse better?
Neither is universally better. Synapse 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 Synapse free and open-source?
Yes. Fractal is licensed under GPL-3.0 and Synapse under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Fractal and Synapse with Docker?
Fractal: check the project docs for container support. Synapse: yes.
Which is lighter on resources, Fractal or Synapse?
Fractal has the smaller minimum footprint at 256 MB of RAM, compared to about 1,024 MB for Synapse. Real-world usage depends on library size, user count, and enabled features.