Mattermost is an open-source team communication platform suitable for developers and all team types. The service can be self-hosted on organization infrastructure enabling complete control. Mattermost provides messaging, file sharing, and collaboration capabilities. The platform supports applications across all major operating systems including Linux, macOS, and Windows. Mattermost includes rich APIs enabling custom integrations. The service emphasizes security and privacy in team communication. Mattermost supports both cloud-hosted and self-hosted deployment models.
