Open-source, self-hosted, Slack alternative

What is Mattermost?

Mattermost is modern communication from behind your firewall.

Mattermost is a tool in the Group Chat & Notifications category of a tech stack.

Mattermost is an open source tool with 14.8K Github Stars and 2.92K Github Forks. Here’s a link to Mattermost's open source repository on Github

Who Uses Mattermost?

37 companies use Mattermost including Uber, DuckDuckGo, and Kanteronstack.

Mattermost integrates with

Amazon EC2, Jenkins, GitLab, Microsoft Azure, and Google Compute Engine are some of the popular tools that integrate with Mattermost. Here's a list of all 13 tools that integrate with Mattermost.

Why people like Mattermost

Here’s a list of reasons why companies and developers use Mattermost.



Add a one-liner

Here are some stack decisions and reviews by companies and developers who chose Mattermost in their tech stack.

Mattermost's Features

  • All your team communication in one place, searchable and accessible anywhere
  • Slack-compatible, not Slack-limited. Imports Slack channels, users and themes. Offers Slack-compatible webhooks and integrations including Hubot, Jenkins, GitLab and others
  • Self-host ready with System Console and IT admin tools for managing dozens of team sites. Installs with Linux binary, plus Docker, Heroku, AWS, Azure and Cloud Foundry options

Mattermost's alternatives

  • Slack - Slack brings all your communication together in one place
  • RocketChat - Open source slack alternative
  • Riot - A React-like user interface micro-library
  • HipChat - Supercharge team collaboration with group chat and IM
  • Gitter - Messaging for people who make software. Integrated with your team, projects and your code.

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