Mattermost vs Openfire
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?
Mattermost
Secure collaboration for developer teams
VS
Openfire
Real-time collaboration XMPP server written in Java
| Feature | Mattermost | Openfire |
|---|---|---|
| Category | Team Chat | Matrix & XMPP |
| License | AGPL-3.0 | Apache-2.0 |
| Language | TypeScript | Java |
| Setup difficulty | Medium | Medium |
| Min. RAM | 2,048 MB | 512 MB |
| Deployment | docker, bare-metal, kubernetes | docker, bare-metal, binary |
| GitHub stars | ★ 38,708 | ★ 3,052 |
| First released | 2016 | 2004 |
| Replaces | Slack, Microsoft Teams | Slack, Microsoft Teams |
Why pick each one
Choose Mattermost if…
- Great for technical teams
- Strong security posture
- Good integrations
Frequently asked questions
Is Mattermost or Openfire better?
Neither is universally better. Mattermost has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Mattermost and Openfire free and open-source?
Yes. Mattermost is licensed under AGPL-3.0 and Openfire under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Mattermost and Openfire with Docker?
Mattermost: yes. Openfire: yes.