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Mattermost

Freemium

Open-source, self-hostable team chat for security-conscious organisations.

Overview

Who it's for

Engineering, government and regulated teams that need control over data.

Key features
  • Channels and threads
  • Self-hosting
  • Playbooks
  • Integrations
  • Compliance features
Pros
  • Self-host and own your data
  • Open source
  • Strong security
Cons
  • Requires hosting and admin
  • Less polished than Slack

Mattermost alternatives

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