Synapse vs Openfire
A side-by-side comparison of two self-hosted matrix & xmpp options — licensing, setup difficulty, resource needs, and what each one replaces.
Synapse
Reference homeserver for the Matrix network
VS
Openfire
Real-time collaboration XMPP server written in Java
| Feature | Synapse | Openfire |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 89 · Excellent | 87 · Excellent |
| Category | Matrix & XMPP | Matrix & XMPP |
| License | AGPL-3.0 | Apache-2.0 |
| Language | Python | Java |
| Setup difficulty | Hard | Medium |
| Min. RAM | 1,024 MB | 512 MB |
| Deployment | docker, bare-metal | docker, bare-metal, binary |
| GitHub stars | ★ 4,643 | ★ 3,064 |
| First released | 2014 | 2004 |
| Replaces | Slack, Discord, WhatsApp | Slack, Microsoft Teams |
What are Synapse and Openfire?
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
Openfire
Openfire is a mature, cross-platform real-time collaboration server that uses the XMPP protocol. It offers a clean web administration console and an extensive plugin ecosystem for chat, presence, and group communication.
- Web-based admin console
- Rich plugin ecosystem
- LDAP and Active Directory integration
- Group chat and presence
Synapse vs Openfire: key differences
Synapse is written in Python, while Openfire is built with Java. Licensing differs — AGPL-3.0 for Synapse versus Apache-2.0 for Openfire. Openfire is the lighter option, starting around 512 MB of RAM against 1,024 MB for Synapse. Openfire is the more established project (first released 2004), while Synapse arrived in 2014.
Why pick each one
Choose Synapse if…
- Open federated protocol
- Strong encryption
- Bridges to other chats
Watch out for
- Resource and maintenance heavy
- Complex to operate well
Choose Openfire if…
- Easy to administer
- Long track record
Watch out for
- Java memory footprint
- Dated user interface
Frequently asked questions
Is Synapse or Openfire better?
Neither is universally better. Synapse has the larger community, while Openfire is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Synapse and Openfire free and open-source?
Yes. Synapse is licensed under AGPL-3.0 and Openfire under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Synapse and Openfire with Docker?
Synapse: yes. Openfire: yes.
Which is lighter on resources, Synapse or Openfire?
Openfire has the smaller minimum footprint at 512 MB of RAM, compared to about 1,024 MB for Synapse. Real-world usage depends on library size, user count, and enabled features.