Creator and commerce
Mattermost Professional alternatives
2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.
The projects
zulip/zulip★25,614 GitHub starsApache-2.0 licenceOpen-source server and web application providing threaded team chat with presence, clients, and integrations.Open on GitHub ↗chattocorp/chatto★2,490 GitHub starsAGPL-3.0 licenceA self-hostable, fully featured team and group chat application for real-time messaging and collaboration.Open on GitHub ↗
What you give up either way
- Enterprise support SLAs and vendor-managed support
- Certified compliance features, attested deployments and compliance consulting
- Advanced enterprise features such as Enterprise LLM Management and Agent-enhanced Search
- Proprietary integrations, pre-packaged connectors, and official hardened deployments
- Guaranteed high-availability scaling and managed horizontal scaling options
An open-source project doing the core job proves a replacement is possible. It does not prove it matches Mattermost Professional, and it does not prove anyone has run it for a month. How we decide.