Mattermost delivers sovereign collaboration, adaptive security, and AI-accelerated workflows — purpose-built automation and controls to outpace complexity and win in any environm

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.

Designed for modern teams, Mattermost empowers you to manage mission-critical work with confidence. Whether you’re responding to major incidents, handling routine releases, or st

Mattermost is secure workplace messaging from behind your firewall. To use this app, you need a URL for a Mattermost server. Safety starts with understanding how developers collect

Feb 2, 2026 · Learn more about the cost of Mattermost, different pricing plans, starting costs, free trials, and more pricing-related information provided by Mattermost.

Apr 23, 2026 · Discover Mattermost, a powerful open-source collaboration platform designed for secure team messaging, DevOps workflows, and enterprise communication. Learn feature

Mattermost Team Edition container image for Docker simplifies deployment and management of Mattermost collaborative platform for team communication and productivity.

Take Mattermost wherever you go with the latest version of our mobile application. Evaluate Mattermost without deploying your own server. Get instant access to a demo environment t

5 days ago · NASCAR San Diego announced today that Mattermost, the leading sovereign collaboration platform purpose-built for mission-critical operations, will serve as the naming

2 days ago · Mattermost gives you the full team chat experience — channels, direct messages, threads, file sharing, bots, integrations — self-hosted. Complete message history,