Sliding Sync Proxy vs Openfire
A side-by-side comparison of two self-hosted matrix & xmpp options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Sliding Sync Proxy
Standalone sync proxy enabling fast Matrix clients
VS
Openfire
Real-time collaboration XMPP server written in Java
| Feature | Sliding Sync Proxy | Openfire |
|---|---|---|
| Category | Matrix & XMPP | Matrix & XMPP |
| License | Apache-2.0 | Apache-2.0 |
| Language | Go | Java |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 512 MB |
| Deployment | docker, binary, source | docker, bare-metal, binary |
| GitHub stars | ★ 282 | ★ 3,052 |
| First released | 2022 | 2004 |
| Replaces | — | Slack, Microsoft Teams |
Why pick each one
Choose Sliding Sync Proxy if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Written in Go
- Tiny footprint — runs in 256 MB RAM
Frequently asked questions
Is Sliding Sync Proxy or Openfire better?
Neither is universally better. Openfire has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Sliding Sync Proxy and Openfire free and open-source?
Yes. Sliding Sync Proxy is licensed under Apache-2.0 and Openfire under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Sliding Sync Proxy and Openfire with Docker?
Sliding Sync Proxy: yes. Openfire: yes.