OpenAppsSubmit

Open-source alternatives

1 open-source alternative to Slack

Free apps you can download, self-host or modify instead of paying for Slack. Ranked by GitHub stars.

  • MacroAI & LLMalt. to Slack

    Macro is a unified workspace for teams: email, chat, docs, tasks, agents, calls, and CRM — @-linked together with shared AI memory.

    4.6kRustAGPL-3.0
    11mo ago