Self-Hosted Microsoft 365 Copilot Alternatives

Microsoft 365 Copilot is not available as a self-hosted solution but there are plenty of alternatives for power users and business that want to host a solution on-premise. The best Self-Hosted alternative is ONLYOFFICE. It's not free, so if you're looking for a free alternative, you could try ONLYOFFICE or CryptPad. If that doesn't suit you, our users have ranked more than 50 alternatives to Microsoft 365 Copilot and 11 are available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting Self-Hosted alternatives to Microsoft 365 Copilot are ZetaOffice, Collabora Online, Kolab and Zimbra Collaboration Suite.

filter to find the best alternatives

Microsoft 365 Copilot alternatives are mainly Office Suites, but if you're looking for Word Processors or Spreadsheet Apps you can filter on that. Other popular filters include Paid, Android + Open Source, Windows + Free, Word Processing, Self-Hosted, Linux and Open Source. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Microsoft 365 Copilot.
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Alternatives list

  1. ONLYOFFICE icon

    ONLYOFFICE

     629 likes
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    Open-source office suite offering document, spreadsheet, and presentation editing with co-editing modes, plugin support, integration across 30+ services, robust security, and mobile access. Available in Community, Enterprise, and Home Server editions for versatile deployment.

    71 ONLYOFFICE alternatives

    Cost / License

    • Free Personal
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad
    • Self-Hosted
    • AppImageHub
    • Snapcraft
    • Flathub
    • Samsung Galaxy Store
    • Software as a Service (SaaS)
    • Flatpak
    • Cloudron
    ONLYOFFICE screenshot 1
     
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    141
    Comments about ONLYOFFICE as an Alternative to Microsoft 365 Copilot
    Comment summary: ONLYOFFICE is widely praised as a free and open-source alternative to Microsoft 365 (Office), providing strong compatibility with Microsoft Office formats. Users appreciate its modern design, fast performance, and versatility across platforms, including Linux. While some note it lacks a few features, its user interface and formatting capabilities generally surpass those of LibreOffice.
    Top Positive Comment
    Jatan Mehta
    9

    Doesn't mess up formatting like LibreOffice does.

    social-remodeler
    Positive
    0

    It is not proprietary software.

    nguyenkhoi-luong-56
    Positive
    0

    It's free and open source software. Compatible with most Microsoft Office documents. Doesn't track you at all.

    Show more comments
    3 of 22 comments
    Microsoft 365 Copilot Icon
    ONLYOFFICE icon

    • Almost everyone thinks ONLYOFFICE is a great Microsoft 365 Copilot alternative.

    • ONLYOFFICE is the most popular Web-based, iPhone, iPad, SaaS, Android Tablet & Self-Hosted alternative to Microsoft 365 Copilot.

    • ONLYOFFICE is Free Personal and Open SourceMicrosoft 365 Copilot is Freemium and Proprietary
    • ONLYOFFICE is Privacy focusedMicrosoft 365 Copilot is not according to our users
  2. CryptPad icon

    CryptPad

     167 likes
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    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.

    72 CryptPad alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Software as a Service (SaaS)
    • Self-Hosted
    • Cloudron
    Instance homepage
     
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    2
    17
    Comments about CryptPad as an Alternative to Microsoft 365 Copilot
    Shaz Shah
    Positive
    0

    I like Cryptpad as an alternative to M365, where it allows you to self-host your own office suite, which looks like an instance of OnlyOffice hosted in the "cloud" while respecting E2EE and is open source. If you'd rather use the cloud than self-host you can use a public instance or a paid plan for hosting and storage.

    kaspian
    Positive
    0

    Great thing to selfhost, it uses E2EE

    Microsoft 365 Copilot Icon
    CryptPad icon

    • Almost everyone thinks CryptPad is a great Microsoft 365 Copilot alternative.

    • CryptPad is Freemium and Open SourceMicrosoft 365 Copilot is Freemium and Proprietary
    • CryptPad is Privacy focused and LightweightMicrosoft 365 Copilot is not according to our users
  4. Collabora Office Classic icon

    Collabora Office Classic

     62 likes
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    On-premise office suite featuring advanced word processing, spreadsheets, and presentations, unmatched compatibility with 100+ formats, OOXML support, six-month updates, enterprise hardening, Visio and Publisher import, PDF export, and support for 50+ languages.

    40 Collabora Office Classic alternatives

    Cost / License

    • Freemium (Pay once or Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Self-Hosted
    • Software as a Service (SaaS)
    • Cloudron
    • Flathub
    • Flatpak
    Collabora Office Classic screenshot 1
     
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    11
  5. Ad
    Screenshot
    ONLYOFFICE icon
    ONLYOFFICE

    Open-source office suite offering document, spreadsheet, and presentation editing with co-editing modes, plugin support, integration across 30+ services, robust security, and mobile access. Available in Community, Enterprise, and...

    https://www.onlyoffice.com
    Learn More
  6. ZetaOffice icon

    ZetaOffice

     8 likes
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    Experience LibreOffice in your browser with ZetaOffice, featuring device access, self-hosting or CDN deployment, API for tailored integration, and data control. Enjoy a comprehensive suite with Writer for formatting, Calc for data analysis, and Impress for presentations, optimized for performance.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Windows
    • Linux
    • Online
    • Self-Hosted
    • Flathub
    • Flatpak
    ZetaOffice screenshot 1
     
  7. Collabora Online icon

    Collabora Online

     13 likes
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    Collabora Online is a powerful LibreOffice-based online office suite with collaborative editing, which supports all major document, spreadsheet and presentation file formats and works in all modern browsers.

    24 Collabora Online alternatives

    Cost / License

    • Subscription
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Self-Hosted
    • Software as a Service (SaaS)
    • Cloudron
    With live video collaboration. Using Talk in the right side bar.
     
  8. Kolab icon

    Kolab

     43 likes
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    Kolab provides a FOSS communication & collaboration solution that can be completely self-hosted. Take back control of your data and access it via the webinterface, or existing mobile & desktop clients.

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application type

    Platforms

    • Linux
    • Online
    • Self-Hosted
     
  10. Zimbra Collaboration Suite icon

    Zimbra Collaboration Suite

     35 likes
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    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.

    45 Zimbra Collaboration Suite alternatives

    Cost / License

    • Pay once
    • Proprietary

    Application types

    Platforms

    • Linux
    • Online
    • Self-Hosted
    Zimbra Collaboration Suite screenshot 1
     
  11. Open365 icon

    Open365

     30 likes
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    The open source cloud with LibreOffice online - LibreOffice online + Seafile + KDE. Improve your productivity and communicate better with your team members. The world is moving forward. Welcome to the open source cloud!.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Android
    • Self-Hosted
    Open365 screenshot 1
     
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    9
  12. SSuite Office icon

    SSuite Office

     13 likes
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    SSuite Office is the foremost provider of Free quality office software on the internet today.

    43 SSuite Office alternatives

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Windows
    • Linux
    • Online
    • Self-Hosted
    SSuite Office screenshot 1
     
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    2
    8
    Comments about SSuite Office as an Alternative to Microsoft 365 Copilot
    Guest
    Positive
    3

    It does not require DotNet or Java to run. It runs natively on all WIN32 systems. That means it can be installed and run on Windows 95 right up to Windows 10 without any problems. It supports only open document formats, like the Rich Text format (*.RTF), that can be opened by any office suite on any operating system without any formatting errors. It is a very small download and install and also does not use any resources from the system.

    Review by a new / low-activity user.
    Guest
    Positive
    1

    It does not require Java or.NET to be loaded on your computer!

    Review by a new / low-activity user.
    Microsoft 365 Copilot Icon
    SSuite Office icon

    • Most users think SSuite Office is a great Microsoft 365 Copilot alternative.

    • SSuite Office is Free and ProprietaryMicrosoft 365 Copilot is Freemium and Proprietary
  13. SmartOffice icon

    SmartOffice

     11 likes
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    SmartOffice is a lightweight and easy-to-use mobile document productivity suite available as an SDK or as a mobile app. View, edit, create, print, present and share Microsoft Office and PDF documents via your mobile device.

    Cost / License

    • Pay once or Subscription
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Online
    • Windows Mobile
    • Android
    • iPhone
    • Symbian S60
    • HP webOS
    • Blackberry
    • Android Tablet
    • iPad
    • Self-Hosted
    • Software as a Service (SaaS)
    SmartOffice screenshot 1
     
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