Open365 Alternatives

Open365 is described as '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!' and is a Office Suite in the office & productivity category. There are more than 25 alternatives to Open365 for a variety of platforms, including Windows, Web-based, Android, iPhone and Linux apps. The best Open365 alternative is LibreOffice, which is both free and Open Source. Other great apps like Open365 are ONLYOFFICE, Microsoft 365 Copilot, CryptPad and Apache OpenOffice.

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Alternatives list

  1. Nextcloud Hub icon
     23 likes

    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.

    52 Nextcloud Hub alternatives

    Cost / License

    • Free
    • Open Source

    Platforms

    • Self-Hosted
    • Nextcloud
     
  2. Suite for secure email, calendaring, file sharing, chat, and online meetings, offering real-time collaboration on docs, GDPR compliance, customizable branding, renewable energy use, advanced user management, and all data hosted in Switzerland.

    79 Infomaniak kSuite alternatives

    Cost / License

    • Free Personal
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
     
  3. Nino icon
     6 likes

    Nino is the modular workspace for professionals. It is a collection of software that can interoperate with each other on the block-level from one uniform interface.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Snapcraft
     
  4. OfficeSuite  icon
     37 likes

    OfficeSuite is a cross-platform office suite for Windows PC, Android, and iOS. It has powerful modules for DOCUMENTS, SPREADSHEETS, PRESENTATIONS, and PDF files.

    OfficeSuite is compatible with Microsoft Word, Excel, PowerPoint and Adobe PDF files.

    36 OfficeSuite alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Windows
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Apple Watch
    • Kindle Fire
     
  5. Murena Workspace is your personal email account, your agenda and contacts, your drive on the cloud and your online office suite. All combined in one single service at murena.io, simple to use. It is powered by proven open-source software like NextCloud and OnlyOffice.

    46 Murena Workspace alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Online
     
  6. KMail icon
     49 likes

    KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE. It supports calendars, contacts, notes, to-do lists, news, and email.

    53 KMail alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    • BSD
     
  7. Gridie icon
     2 likes

    Gridie is an AI-powered spreadsheet automation tool for Excel and Google Sheets that focuses on reusable workflows instead of one-off AI answers.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Software as a Service (SaaS)
     
  8. AndrOpen Office is a independent port of Apache OpenOffice for Android.

    You can view, edit, import, and export PDF, Word, Excel & PowerPoint documents using full features of the OpenOffice in the PC version.

    AndrOpen Office has 5 components: Writer a word processor you can.

    53 AndrOpen Office alternatives

    Cost / License

    Application types

    Alerts

    • Discontinued

    Platforms

    • Android
    • Android Tablet
     
  9. Hancom Office icon
     20 likes

    Formerly ThinkFree Office. The office productivity suite for on-the-go featuring online collaboration and the best round-trip MS Office compatibility.

    42 Hancom Office alternatives

    Cost / License

    • Paid
    • Proprietary

    Application types

    Platforms

    • Windows
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
     
  10. Polaris Office icon
     19 likes

    Create, edit, and save Word, Excel, PowerPoint, PDF, and HWP files offline, sync files with free and third-party cloud storage, attach files to email, cast documents to Chromecast, use desktop and mobile clients, insert images, videos, and collaborate on shared documents.

    42 Polaris Office alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Alerts

    • Bundleware

    Platforms

    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Kindle Fire
     
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