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Open Source Google Workspace Alternatives

The best open source alternative to Google Workspace is CryptPad. If that doesn't suit you, our users have ranked more than 25 alternatives to Google Workspace and eight of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Google Workspace are Zimbra Collaboration Suite, WikiSuite, Nextcloud Hub and Kolab Community.

Google Workspace alternatives are mainly Mail Servers but may also be Team Collaboration Tools or Calendar Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Google Workspace.
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  • Online
  • Chrome OS

Google Workspace (formerly Google Apps for Work / G Suite) is Google's encompassing selection of cloud apps for...

Learn more about Google Workspace

  1. CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys.

    Screenshot
  2. Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.

    Screenshot


  3. WikiSuite icon

    WikiSuite

    • FreeOpen Source
    • Linux
    • Self-Hosted

    WikiSuite™ is especially suited to knowledge-centric organizations and offers most (80%+) of the data and information management features all organizations need.

    No screenshots yet
  4. Nextcloud Hub icon

    Nextcloud Hub

    • FreeOpen Source
    • Self-Hosted

    Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks.

    No screenshots yet
  5. Kolab Community icon

    Kolab Community

    • FreemiumOpen Source
    • Linux
    • Online
    • Self-Hosted

    Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.

    No screenshots yet


  6. Kopano icon

    Kopano

    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • Windows Phone
    • iPad
    • Self-Hosted
    • Microsoft Office Outlook
    • S/MIME
    • Software as a Service (SaaS)

    Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.

    Screenshot
  7. Kolab Now icon

    Kolab Now

    • Online
    • Software as a Service (SaaS)
    • DAVdroid

    Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.

    Kolab Now email
  8. OpenChange icon

    OpenChange

    • FreeOpen Source
    • Linux

    OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols.

    No screenshots yet
Showing 8 of 8 alternatives