Mattermost
mattermost.com ↗Open sourceSelf-hostable
Messaging platform that enables secure team collaboration.
CategoryChat and ChatOps
PricingFree, open source+ paid cloud / support
Self-hostableYes
Repositorymattermost/mattermost
LanguageTypeScript
Last activityOct 2026Active
Repository
From GitHub · updated Oct 4
Stars39k
Forks9k
Open issues1k
Last pushOct 2026
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