OSS TanbouOverview
Mattermost is an open-core collaboration platform combining team messaging, workflow automation, calls, screen sharing, and AI integrations. Built primarily with Go and React, it can run on premises or in the cloud.
Features and best fit
Based on official documentation; not hands-on tested · Content checked:
Bring conversations and operational workflows into one workspace
Web, desktop, and mobile clients, APIs, and more than 700 integrations connect chat, calls, screen sharing, and automation. The server centers on a single Linux binary and PostgreSQL, with DevSecOps, incident resolution, and IT service desks among its use cases.
Sources: [1]
For controlled communications and collaborative operations
It fits development, security, and IT teams that want messages, incident response, repeatable workflows, and external tools in one managed environment. Before adoption, map required features to the Team Edition, commercial editions, and plugins.
Sources: [1]
Terms differ for distributed binaries, source, and enterprise code
Mattermost-provided compiled versions are MIT, while servers compiled from source use AGPLv3 or a commercial license; selected administration tools and configuration paths are Apache-2.0. server/enterprise uses the Mattermost Source Available License and imposes conditions such as a valid E20 subscription for production use.
Official sources
- [1]Mattermost README(2026-09-13)
- [2]Mattermost repository license(2026-09-13)
- [3]Mattermost enterprise license(2026-09-13)
Supplemental curator note
Selected for concentrating server, web, and mobile discovery in one branded repository while making edition and licensing boundaries essential context.
Growth
Growth trends · Last 30 days
39,049 Stars
Trend data is still being collected.
Development activity
Last 90 days · weekly
- Commits (last 30 days)
- 209
- Open PRs
- 440
Development activity is still being collected.
Built with
Categories and tags
Categories
GitHub data
GitHub dataView detailed GitHub data
GitHub Topics
- collaboration
- mattermost
- golang
- react-native
- hacktoberfest
- monorepo
- react
- Stars
- 39,049
- Forks
- 8,985
- Watchers
- 538
- Open issues
- 600
- Primary language
- TypeScript
- License
- Not determined
- Repository last updated
- Sep 13, 2026
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