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Mattermost

Open-source, self-hosted team messaging for secure environments.

Open sourceSelf-hostableTeam chat apps
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About Mattermost

Mattermost is an open-source collaboration platform offering channel-based messaging, calls and workflow playbooks, designed to be self-hosted in your own data center or private cloud. It is popular with government, defense, finance and security teams that need control over where their data lives, and it integrates with developer tools such as GitLab and Jira. Teams can run the free self-hosted edition or buy enterprise plans for compliance features, high availability and support. Its interface will feel familiar to Slack users, which eases migration for teams moving away from hosted chat.

Best for: Security-conscious organizations that must self-host chat.

Pros and cons

What works

  • Open source and self-hosted
  • Slack-like interface
  • Strong compliance options

Why people leave

  • Self-hosting requires maintenance
  • Smaller integration catalog than Slack

Top Mattermost alternatives

See all 6
  1. 1Slack logo
    Slack

    Hosted chat with the largest integration ecosystem, no servers to run.

    61.8
  2. 2Rocket.Chat logo
    Rocket.Chat

    Also open source and self-hosted, with omnichannel and federation.

    61.8
  3. 3Zulip logo
    Zulip

    Open source and self-hosted, with topic-based threading.

    61.3
  4. 4Campfire logo
    Campfire

    Much simpler self-hosted chat with a one-command install.

    40.0
  5. 5Wire logo
    Wire

    Encrypted collaboration with managed cloud or on-premises deployment.

    38.6

Why people left Mattermost

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

No switching stories yet. If you moved away from Mattermost, review the app you switched to and tell us why.

Reviews

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Mattermost: common questions

Is Mattermost free?

Yes. Mattermost is free, open-source software that you can host yourself.

Is Mattermost open source?

Yes. The source code is on GitHub at mattermost/mattermost. You can also run it on your own server.

What platforms does Mattermost run on?

Mattermost is available for Web, Windows, macOS, Linux, iOS, Android and Self-hosted.

What are the best alternatives to Mattermost?

The highest-ranked Mattermost alternatives right now are Slack, Rocket.Chat and Zulip. See the full ranked list for pricing, platforms and verified facts.

See all 6 Mattermost alternatives