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Mattermost logo

Mattermost is an open core, self-hosted collaboration platform that offers chat, workflow automation, voice calling, screen sharing, and AI integration. This repo is the primary source for core development on the Mattermost platform; it's written in Go and React, runs as a single Linux binary, and relies on PostgreSQL. A new compiled version is released under an MIT license every month on the 16th.

Deploy Mattermost on-premises, or try it for free in the cloud.

mattermost user interface

Learn more about the following use cases with Mattermost:

Other useful resources:

Table of contents

Install Mattermost

Other install guides:

Native mobile and desktop apps

In addition to the web interface, you can also download Mattermost clients for Android, iOS, Windows PC, macOS, and Linux.

Get Mattermost on Google Play Get Mattermost on the App Store Get Mattermost on Windows PC Get Mattermost on Mac OSX Get Mattermost on Linux

Get security bulletins

Receive notifications of critical security updates. The sophistication of online attackers is perpetually increasing. If you're deploying Mattermost it's highly recommended you subscribe to the Mattermost Security Bulletin mailing list for updates on critical security releases.

Subscribe here

Get involved

Learn more

License

See the LICENSE file for license rights and limitations.

Get the latest news

Contributing

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Please see CONTRIBUTING.md. Join the Mattermost Contributors server to join community discussions about contributions, development, and more.