Rocket.Chat
46kCommunications platform that puts data protection first (alternative to Gitter.im and Slack).
Communication - Custom Communication SystemsMIT
Mattermost
Platform for secure collaboration across the entire software development lifecycle, can be integrated with Gitlab (alternative to Slack).
Details
- Website
- mattermost.com
- Source
- github.com
- Licence
- ⊘ Proprietary
- Platforms
- Go, Docker, K8S
- GitHub stars
- 39,373
- Last update
- 2026-10-18
Open-source alternative to
Categories
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