Best Self-hosted team chat (2026)

A ranked shortlist of Self-hosted team chat — mattermost, rocket.chat, zulip, element-web — each scored by RepoPilot's maintenance and security verdict, so it tracks real repo health rather than star counts.

1. 1
   mattermost/mattermost

   not yet analysed — analyse now
2. 2
   rocketchat/rocket.chat

   not yet analysed — analyse now
3. 3
   zulip/zulip

   Healthy signals · 25,159★
4. 4
   element-hq/element-web

   not yet analysed — analyse now

Drawn from RepoPilot's analyzed corpus and ranked by popularity and health signals, refreshed from each repo's most-recent analysis. Informational only — not professional, security, or legal advice.