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Kumospace alternatives · Team Chat

Open-source alternatives to Kumospace

Kumospace is not described as open source on its own site. 22 of the 75 other team communication apps in this directory are open source, according to their own sites.

Kumospace has a free plan. Paid plans start at $16 per member / month, minimum 5; billing basis not shown. All of them are free or have a free plan.

22 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

The 12 closest to Kumospace

  1. Element

    End-to-end encrypted chat and calls on the Matrix standard

    • Only Element lists a web app.
    • Element is open source, self-hostable and end-to-end encrypted, according to its own site.
    • Element also covers file sharing.
    • Kumospace also covers whiteboard and screen recording.
    Element pricing and details

  2. Wire

    End-to-end encrypted messaging and calls for organizations

    • Wire starts at €7.45 per person / month, paid annually. Kumospace starts at $16 per member / month, minimum 5; billing basis not shown.
    • Only Wire lists a web app.
    • Wire is open source, self-hostable and end-to-end encrypted, according to its own site.
    • Wire also covers file sharing.
    Wire pricing and details

  3. Jami

    Peer-to-peer encrypted chat, calls and video conferences

    • Jami is free. Kumospace starts at $16 per member / month, minimum 5; billing basis not shown.
    • Jami is open source and end-to-end encrypted, according to its own site.
    • Jami also covers file sharing.
    • Kumospace also covers whiteboard and screen recording.
    Jami pricing and details

  4. SimpleX Chat

    Private messenger that uses no user identifiers at all

    • SimpleX Chat is free. Kumospace starts at $16 per member / month, minimum 5; billing basis not shown.
    • SimpleX Chat is open source and end-to-end encrypted, according to its own site.
    • Kumospace also covers whiteboard and screen recording.
    SimpleX Chat pricing and details

  5. Olvid

    End-to-end encrypted messenger needing no phone number

    • Olvid starts at €4.99 per user / month, incl. taxes (in-app purchase). Kumospace starts at $16 per member / month, minimum 5; billing basis not shown.
    • Only Olvid lists a web app.
    • Only Kumospace lists a Linux app.
    • Olvid is open source and end-to-end encrypted, according to its own site.
    Olvid pricing and details

  6. OpenIM

    Open-source chat, voice and video infrastructure for apps

    • Only OpenIM lists a web app.
    • Only Kumospace lists macOS, Windows and Linux apps.
    • OpenIM is open source and self-hostable, according to its own site.
    • Kumospace also covers whiteboard and screen recording.
    OpenIM pricing and details

  7. Mattermost

    Self-hosted team messaging with playbooks, calls and boards

    • Only Mattermost lists a web app.
    • Mattermost is open source and self-hostable, according to its own site.
    • Mattermost also covers kanban boards, workflow automation and AI agents.
    • Kumospace also covers whiteboard, screen recording and video calls.
    Mattermost pricing and details

  8. Rocket.Chat

    Open-source, self-managed chat for security-focused teams

    • Only Rocket.Chat lists a web app.
    • Rocket.Chat is open source, self-hostable and end-to-end encrypted, according to its own site.
    • Rocket.Chat also covers file sharing.
    • Kumospace also covers whiteboard, screen recording and video calls.
    Rocket.Chat pricing and details

  9. Zulip

    Open-source team chat that organizes channels by topic

    • Zulip starts at $3.50 per user / month self-hosted (billed monthly); Cloud from $6.67 billed annually. Kumospace starts at $16 per member / month, minimum 5; billing basis not shown.
    • Only Zulip lists a web app.
    • Zulip is open source and self-hostable, according to its own site.
    • Zulip also covers file sharing.
    Zulip pricing and details

  10. Jitsi Meet

    Free, open-source video meetings you can self-host

    • Jitsi Meet is free. Kumospace starts at $16 per member / month, minimum 5; billing basis not shown.
    • Only Jitsi Meet lists a web app.
    • Jitsi Meet is open source, self-hostable and end-to-end encrypted, according to its own site.
    • Kumospace also covers whiteboard, screen recording and team chat.
    Jitsi Meet pricing and details

  11. ONCE Campfire

    Self-hosted group chat from 37signals, free and open source

    • ONCE Campfire is free. Kumospace starts at $16 per member / month, minimum 5; billing basis not shown.
    • Only ONCE Campfire lists a web app.
    • Only Kumospace lists macOS, Windows, Linux, iOS and Android apps.
    • ONCE Campfire is open source and self-hostable, according to its own site.
    ONCE Campfire pricing and details

  12. Matrix

    Open, decentralized network for chat and calls

    • Matrix is free. Kumospace starts at $16 per member / month, minimum 5; billing basis not shown.
    • Only Matrix lists a web app.
    • Matrix is open source, self-hostable and end-to-end encrypted, according to its own site.
    • Kumospace also covers whiteboard, screen recording and video calls.
    Matrix pricing and details

10 more that are open source

All 22 in one table

Common questions

Is there an open-source alternative to Kumospace?

Yes. Element, Wire, Jami, SimpleX Chat, Olvid, OpenIM, Mattermost, Rocket.Chat and 14 more are open source, according to their own sites.

Is Kumospace open source?

Kumospace is not described as open source on its own site. The listing was checked on Nov 12, 2026 against the pages it cites.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Kumospace: the alternatives its listing names first, then the tools that share the most features with it.