Subscriptions · team chat

Replace your Slack subscription.

5 open-source projects in the catalog replace Slack — you run them, you own them — 3 under OSI open-source licenses, the rest source-available or unclear. The quickest start: Element (install & go).

nightly index · api.github.com · nightly · Oct 29, 4:10 PM UTC
  1. 01
    Rocket.ChatLicense unclear

    Team chat with omnichannel support.

    ★ 46,350ActiveAn afternoonOther
    →
  2. 02
    MattermostLicense unclear

    Secure team messaging and collaboration.

    ★ 39,465ActiveAn afternoonOther
    →
  3. 03
    ZulipOpen source

    Threaded team chat that scales.

    ★ 26,138ActiveAn afternoonApache 2.0
    →
  4. 04
    ElementOpen source

    Messaging on the decentralized Matrix protocol.

    ★ 13,624ActiveInstall & goAGPL 3.0
    →
  5. 05
    SynapseOpen source

    The reference Matrix homeserver.

    ★ 4,741ActiveAn ops projectAGPL 3.0
    →

Also replacing in communication

Gmailalternatives →Zoomalternatives →Intercomalternatives →Mailchimpalternatives →Circle / hosted forumsalternatives →
The Build Log · weekly

One subscription to replace, every Monday.