Mattermost is an open-source team messaging platform designed for secure communication and collaboration. It provides Slack-like functionality with self-hosted deployment options, making it ideal for organizations that need data control and compliance. Mattermost includes file sharing, video calls, and extensive integration capabilities.
- Team messaging with channels and direct messages
- File sharing and search
- Video and audio calls
- Webhooks and bot integrations
- Mobile and desktop clients
- LDAP/AD integration (Enterprise)
- Backend: Go (Golang)
- Frontend: React, TypeScript
- Database: PostgreSQL 14+ (MySQL deprecated v11.0+)
- Architecture: Single Linux binary
- Self-hosted installation on Linux
- Containerized deployment with Docker
- Cloud-hosted option available
- License: AGPL-3.0 (source) / MIT (compiled binaries)
- Current Version: 11.4.1 (February 2026)
- Enterprise Edition: Available with SAML, LDAP, compliance features
¶ History and References
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