MattermostLinux
vs
Microsoft Teams (new)Windows
Mattermost as a Linux alternative to Microsoft Teams (new)
Updated
Our verdict
Mattermost is a solid replacement for Microsoft Teams (new) if you prioritize self-hosting, data control, and developer workflow integration. It handles persistent group chat, file sharing, and has plugin-based video conferencing via Jitsi or Zoom, but lacks built-in, reliable multi-party calling and screen sharing. Teams used to tight Microsoft 365 integration or requiring seamless external collaboration will find gaps. Best for tech teams comfortable self-hosting and extending functionality through APIs and plugins, not for organizations needing out-of-the-box, full-featured conferencing.
- License
- Apache-2.0
- Price
- Free
- Latest version
- 6.3.1 (October 15, 2026)
- Rating
- —
What works the same
- Persistent, searchable group chat organized in channels
- File sharing within messages and channels
- Support for external guests via email invite (with setup)
- Integrations with calendars and scheduling tools via plugins or bots
- API-first design enabling automation and CI/CD workflows
What is different
- No native built-in video conferencing; relies on third-party integrations like Jitsi
- Screen sharing requires external tools or browser extensions, not seamless
- No direct Microsoft 365 or Outlook integration out of the box
- Admin and setup complexity is higher due to self-hosting model
- Smaller ecosystem of pre-built apps compared to Teams
Opening your Microsoft Teams (new) files
Mattermost allows file uploads and sharing, but cannot directly open or convert Microsoft Teams-specific formats like .teams meeting files or OneNote tabs. Files shared in Teams such as Word, Excel, or PDFs can be viewed and shared in Mattermost if saved externally. There is no automated migration path for chat history or file permissions. Administrators must export and re-upload files manually when moving from Teams.
Switching from Microsoft Teams (new) to Mattermost, step by step
- Install and configure a Mattermost server on a Linux host using PostgreSQL or MySQL
- Set up email or SSO authentication to match your organization's access model
- Create channels corresponding to existing Teams groups and invite members
- Integrate a video solution like Jitsi via plugin or link sharing for calls
- Migrate important files manually from Teams to Mattermost or a shared drive
- Train users on channel navigation, slash commands, and file handling
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
How to install Mattermost on Linux
flatpak install flathub com.mattermost.Desktopsudo pacman -S mattermostFrequently asked questions
Can external users join Mattermost without creating an account?
No, external participants need an account, but admins can invite them via email and manage access through guest roles.
Does Mattermost support video calls like Microsoft Teams?
Not natively. You must integrate third-party services like Jitsi or Zoom through links or plugins.
Can I use Mattermost without self-hosting?
Yes, Mattermost offers a hosted cloud option, but the primary model is self-hosted for control and compliance.
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