SimpleX Chat vs Zammad

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?
FeatureSimpleX ChatZammad
CategoryChat & CommunicationChat & Communication
LicenseAGPL-3.0AGPL-3.0
LanguageHaskellRuby
Setup difficultyMediumMedium
Min. RAM256 MB4,096 MB
Deploymentdocker, binary, sourcedocker, bare-metal, source
GitHub stars★ 19,211★ 5,834
First released20212016
ReplacesSignal, WhatsApp, TelegramZendesk, Freshdesk

Why pick each one

Choose SimpleX Chat if…

  • Best-in-class metadata privacy
  • Run your own relays
SimpleX Chat details

Choose Zammad if…

  • Mature support workflow
  • Good integrations
Zammad details

Frequently asked questions

Is SimpleX Chat or Zammad better?

Neither is universally better. SimpleX Chat has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are SimpleX Chat and Zammad free and open-source?

Yes. SimpleX Chat is licensed under AGPL-3.0 and Zammad under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run SimpleX Chat and Zammad with Docker?

SimpleX Chat: yes. Zammad: yes.

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