Chatmail vs Tigase XMPP Server
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?
Chatmail
Minimal, instant-onboarding mail server for Delta Chat
VS
Tigase XMPP Server
Highly scalable XMPP/Jabber messaging server
| Feature | Chatmail | Tigase XMPP Server |
|---|---|---|
| Category | Mail Servers | Matrix & XMPP |
| License | MPL-2.0 | AGPL-3.0 |
| Language | Python | Java |
| Setup difficulty | Medium | Hard |
| Min. RAM | 512 MB | 1,024 MB |
| Deployment | docker, bare-metal, source | docker, bare-metal, binary |
| GitHub stars | ★ 476 | ★ 358 |
| First released | 2023 | 2004 |
| Replaces | Slack, WhatsApp |
Why pick each one
Choose Chatmail if…
- Released under the MPL-2.0 license
- First-class Docker support for quick deployment
- Written in Python
- Lightweight — runs in 512 MB RAM
Choose Tigase XMPP Server if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Written in Java
Frequently asked questions
Is Chatmail or Tigase XMPP Server better?
Chatmail is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Tigase XMPP Server if its specific feature set fits your needs better.
Are Chatmail and Tigase XMPP Server free and open-source?
Yes. Chatmail is licensed under MPL-2.0 and Tigase XMPP Server under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Chatmail and Tigase XMPP Server with Docker?
Chatmail: yes. Tigase XMPP Server: yes.