irssi 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?
FeatureirssiSimpleX Chat
CategoryChat & CommunicationChat & Communication
LicenseGPL-2.0AGPL-3.0
LanguageCHaskell
Setup difficultyMediumMedium
Min. RAM32 MB256 MB
Deploymentbare-metal, binary, sourcedocker, binary, source
GitHub stars★ 3,129★ 19,211
First released19992021
ReplacesSlackSignal, WhatsApp, Telegram

Why pick each one

Choose irssi if…

  • Released under the GPL-2.0 license
  • Active community (3.1k GitHub stars)
  • Written in C
  • Tiny footprint — runs in 32 MB RAM
irssi details

Choose SimpleX Chat if…

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

Frequently asked questions

Is irssi 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 irssi and SimpleX Chat free and open-source?

Yes. irssi 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 irssi and SimpleX Chat with Docker?

irssi: check the project docs for container support. SimpleX Chat: yes.

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