Chatmail vs SimpleX Chat

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?
FeatureChatmailSimpleX Chat
CategoryMail ServersChat & Communication
LicenseMPL-2.0AGPL-3.0
LanguagePythonHaskell
Setup difficultyMediumMedium
Min. RAM512 MB256 MB
Deploymentdocker, bare-metal, sourcedocker, binary, source
GitHub stars★ 476★ 19,211
First released20232021
ReplacesWhatsAppSignal, WhatsApp, Telegram

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
Chatmail details

Choose SimpleX Chat if…

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

Frequently asked questions

Is Chatmail or SimpleX Chat 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 Chatmail and SimpleX Chat free and open-source?

Yes. Chatmail is licensed under MPL-2.0 and SimpleX Chat under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run Chatmail and SimpleX Chat with Docker?

Chatmail: yes. SimpleX Chat: yes.

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