Kamailio vs SimpleX Chat
A side-by-side comparison of two self-hosted chat & communication options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Kamailio
High-performance SIP server for VoIP infrastructure
VS
SimpleX Chat
Private messenger without any user identifiers
| Feature | Kamailio | SimpleX Chat |
|---|---|---|
| Category | Chat & Communication | Chat & Communication |
| License | GPL-2.0 | AGPL-3.0 |
| Language | C | Haskell |
| Setup difficulty | Hard | Medium |
| Min. RAM | 256 MB | 256 MB |
| Deployment | docker, bare-metal, source | docker, binary, source |
| GitHub stars | ★ 2,899 | ★ 19,211 |
| First released | 2008 | 2021 |
| Replaces | Twilio | Signal, WhatsApp, Telegram |
Why pick each one
Choose Kamailio if…
- Released under the GPL-2.0 license
- First-class Docker support for quick deployment
- Active community (2.9k GitHub stars)
- Written in C
Frequently asked questions
Is Kamailio or SimpleX Chat better?
SimpleX Chat is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Kamailio if its specific feature set fits your needs better.
Are Kamailio and SimpleX Chat free and open-source?
Yes. Kamailio is licensed under GPL-2.0 and SimpleX Chat under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Kamailio and SimpleX Chat with Docker?
Kamailio: yes. SimpleX Chat: yes.