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Mattermost

Open-source, self-hosted Slack alternative.

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What we love

  • Self-hostable
  • Strong DevOps + ChatOps features
  • Apache 2 open source

What to watch

  • Less polished than Slack
  • More ops overhead

Best for

Defense, government, and finance orgs that need self-hosted chat.

Key features

  • Self-hosted
  • Channels + DMs
  • Built-in playbooks for incidents
  • Open source (Apache 2)
  • Mobile + desktop apps

What is Mattermost?

Mattermost is the self-hostable, open-source team chat — used by gov, defense, and security-conscious orgs. Tight Git integration.

Who is it for?

Mattermost is a great fit for teams looking for a communication & video tool that fits the freemium tier. It's especially loved by distributed teams, sales, and content creators.

Key tags

Team ChatOpen SourceSelf-hosted

How it compares

We curate Mattermost among the top Communication & Video tools on saas.fyi. Browse all Communication & Video tools to compare alternatives, or use the directory's search and filters to find a closer fit.

Pricing

Free OSS, Pro from $10/user/mo. Pricing tier: Freemium. Always confirm current pricing on the official site — SaaS pricing changes frequently.

Quick facts

  • Category: Communication & Video
  • Pricing: Freemium — Free OSS, Pro from $10/user/mo
  • Website: mattermost.com
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