Slack alternatives
Slack is a cloud team messaging platform organizing conversations into channels with integrations across hundreds of developer tools, file sharing, and searchable persistent message history.
4 OSS alts · ★ 125,077
Open-source Team Chat tools
1 SaaS tool · 4 OSS alternatives · 125,077★ combined
Three things to check when comparing team chat tools
- License bucket
- Permissive, weak-copyleft, strong-copyleft or source-available — the bucket decides whether you can modify, embed or host the project as a service. Each alternatives page groups its projects by bucket; confirm the LICENSE file in the linked repository.
- Last push
- The last-pushed date on each card comes from the GitHub public API as of the last daily data refresh. Compare it across the projects in a category before reading feature lists.
- Migration path
- Read the migration tips on each alternatives page, then check the project's own documentation for an importer or export format before planning a cut-over. Pages without migration tips omit that section rather than fill it in.