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Mattermost
Mattermost is an open-source, self-hosted collaboration platform for developer teams, offering a secure alternative to SaaS tools.
- License
- Apache-2.0
- Latest version
- 6.3.0 (August 13, 2026)
- Developer
- Mattermost, Inc.
- Installs
- 1,881 (Flathub, 30 days)
What is Mattermost?
Mattermost is a secure, open-source collaboration platform built specifically for developer teams. Written in Golang and React, it runs as a production-ready Linux binary and connects to MySQL or Postgres. It provides a flexible environment that integrates deeply with existing development tools, moving away from closed SaaS models toward a self-hosted solution that you control.
This tool is ideal for engineering teams, DevOps groups, and developers who need communication tightly coupled with their workflow. It suits organizations that value data sovereignty and want to avoid vendor lock-in. If your team relies heavily on CI/CD pipelines, code repositories, or monitoring systems, Mattermost’s integration capabilities make it a natural fit for daily operations.
Compared to Microsoft Teams, Mattermost feels lighter and less cluttered. It lacks the deep Office suite integration but compensates with superior API access and plugin support for dev tools. The interface is cleaner, focusing on chat, channels, and integrations rather than document co-editing, making it feel more like a dedicated developer hub than a general office suite.
Best for: Developer teams seeking a self-hosted, integration-rich alternative to SaaS collaboration tools.
Key features of Mattermost
- Self-hosted server option for full data control
- Deep integration with CI/CD and code repositories
- Support for MySQL and PostgreSQL databases
- Plugin system for extending functionality
- Channel-based organization for project topics
- API-first design for custom automation
Pros
- Open-source and self-hostable for privacy
- Strong developer-focused integrations
- Lightweight and fast on Linux systems
- No vendor lock-in or subscription fees for core features
Cons
- Requires server administration for self-hosting
- Lacks native document co-editing features
- Interface may feel sparse for non-technical users
Windows programs Mattermost replaces
How to install Mattermost on Linux
flatpak install flathub com.mattermost.Desktopsudo pacman -S mattermostTips for Windows users
Coming from Microsoft Teams, expect a shift from a unified office suite to a focused communication hub. You will not find Word or Excel integration; instead, you will rely on external tools linked via integrations. Channels replace Teams channels, but the setup is more manual if self-hosting. Shortcuts differ, so review the keyboard mapping in settings. File sharing works similarly, but large file handling depends on your server configuration. Plan for API-based workflows to replace Teams’ native automation features.
Recent releases
- 6.3.0 —
- 6.2.2 —
- 6.2.1 —
- 6.2.0 —
Mattermost: frequently asked questions
Can I self-host Mattermost on Linux?
Yes, Mattermost is designed to run as a Linux binary. You can install it on any standard Linux distribution and configure it with MySQL or PostgreSQL for backend storage.
Is Mattermost free to use?
The core platform is open-source under the Apache-2.0 license and free to use. Mattermost, Inc. offers paid enterprise features, but the base version is fully functional without cost.
Does Mattermost replace Microsoft Teams for document editing?
No, Mattermost does not include native document editing. It focuses on chat and integrations. You would pair it with tools like OnlyOffice, Nextcloud, or GitHub for document and code collaboration.
Is there a Linux desktop app for Mattermost?
Yes, Mattermost provides a native desktop application for Linux. It is available via Flathub or direct download, offering a dedicated client experience similar to the web interface.
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