Open365 AlternativesOffice Suites & Email Clients like Open365

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.

Open365 iconOpen365
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The open source cloud with LibreOffice online - LibreOffice online + Seafile + KDE. Improve your productivity and...

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Open365 alternatives page was last updated May 24, 2022
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  1. LibreOffice icon
     3005 likes
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    Comprehensive free office suite supporting word processing, advanced spreadsheets, dynamic presentations, vector drawings, math formulas, and robust database management. Fully compatible with major office formats across all operating systems, it offers extensive capabilities for personal or professional tasks.

    51 LibreOffice alternatives

    License model

    • FreeOpen Source

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • BSD
    • Snapcraft
    • Flathub
    • PortableApps.com
    • F-Droid
    • Flatpak

    Properties

    1.  Customizable
    2.  Lightweight

    Features

    1. Microsoft 365 Copilot icon  Compatible with Microsoft Office
    2.  Ad-free
    3.  Works Offline
    4.  Print to PDF
    5. Microsoft Word icon  Export to Word
    6.  GNU/linux-libre
    7.  Multiple languages
    8.  Community-based
    9.  Built-in PDF converter
    10.  Export to PDF
    11. Microsoft 365 Copilot icon  Export to office formats
    12.  Multiplatform

    LibreOffice VS Open365

     
    • LibreOffice is the most popular Windows, Android, Mac & Linux alternative to Open365.

    • LibreOffice is the most popular Open Source & free alternative to Open365.

    • LibreOffice is Free and Open SourceOpen365 is also Free and Open Source
  2. ONLYOFFICE icon
     572 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

    License model

    • Free PersonalOpen Source

    Country of Origin

    • LV flagLatvia
    • European Union flagEU

    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

    Properties

    1.  Privacy focused

    Features

    1. Microsoft 365 Copilot icon  Compatible with Microsoft Office
    2.  Works Offline
    3.  Real time collaboration
    4.  Tabbed interface
    5. Nextcloud icon  Nextcloud integration
    6.  Team Collaboration
    7.  Export to PDF
    8.  Multiple languages
    9.  Ad-free
    10.  Dark Mode
    11.  Spell Checking
    12.  Cloud based

    ONLYOFFICE VS Open365

     
    • ONLYOFFICE is the most popular Web-based, iPhone, iPad, SaaS, Android Tablet & Self-Hosted alternative to Open365.

    • ONLYOFFICE is Free Personal and Open SourceOpen365 is Free and Open Source
  3. Copy a direct link to this comment to your clipboard

    Office suite offering productivity tools, document creation, and collaboration. Features AI-enhanced editing, mobile app access to documents and shared workspaces. Formats include word processing, spreadsheets, presentations, and email services.

    49 Microsoft 365 Copilot alternatives

    License model

    • FreemiumProprietary

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad

    Top Microsoft 365 Copilot Features

    1.  Works Offline
    2. Microsoft OneDrive icon  Onedrive integration
    3.  Student discount
    4.  PDF annotation
    5.  Real time collaboration
    6.  Cloud Sync
    7.  Support for scripting
    8.  Extensible by Plugins/Extensions
    9.  Full-Text Search
    10.  Dark Mode
    11.  Calendar Integration
    12.  Spell Checking

    Microsoft 365 Copilot VS Open365

     
  4. CryptPad icon
     159 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.

    71 CryptPad alternatives

    License model

    • FreemiumOpen Source

    Country of Origin

    • FR flagFrance
    • European Union flagEU

    Platforms

    • Self-Hosted
    • Software as a Service (SaaS)

    Properties

    1.  Privacy focused
    2.  Distraction-free
    3.  Lightweight

    Features

    1.  End-to-End Encryption
    2.  Real time collaboration
    3.  Collaborative writing
    4.  No registration required
    5.  No Tracking
    6.  Document Sharing
    7.  Ad-free
    8.  Kanban Board
    9.  Encrypted Notes
    10.  Cloud Sync
    11.  Support for MarkDown
    12.  Works Offline

    CryptPad VS Open365

     
  5. Copy a direct link to this comment to your clipboard

    Apache OpenOffice is a leading open-source office suite that offers free applications for word processing, spreadsheet, presentations, graphics, databases and more. All data is stored in an open standard format, though Open Office can also read and write files from other common...

    56 Apache OpenOffice alternatives

    License model

    • FreeOpen Source

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    Discontinued

    Last major release was in 2014

    Apache OpenOffice Features

    1. Microsoft 365 Copilot icon  Compatible with Microsoft Office
    2.  Built-in PDF converter
    3.  Portable
    4.  Syntax Highlighting
    5.  Works Offline
    6.  Custom templates
    7.  Export to PDF

    Apache OpenOffice VS Open365

     
  6. Copy a direct link to this comment to your clipboard

    Streamline emails, calendars, contacts, and task management with a smart inbox prioritizing critical messages. Includes calendar scheduling, third-party app integration like Facebook, Dropbox, and Trello, and support for Microsoft Exchange, Outlook.com, and Gmail, ensuring efficient task and email handling.

    126 Microsoft Outlook alternatives

    License model

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Android Wear

    Top Microsoft Outlook Features

    1.  Exchange
    2.  Native application
    3.  Email Organizer
    4.  Calendar Integration
    5.  Calendar View
    6.  Cloud Sync
    7.  Support for @mentions
    8.  Unified inbox
    9.  Multiple Account support
    10.  Works Offline
    11.  Support for Aliases
    12.  Dark Mode

    Microsoft Outlook VS Open365

     
    • Microsoft Outlook is the most popular commercial alternative to Open365.

    • Microsoft Outlook is Paid and ProprietaryOpen365 is Free and Open Source
  7. WPS Office icon
     396 likes
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    A comprehensive, free office suite offering high compatibility across formats. Supports Android, iOS, Windows, Linux, macOS, and handles text, presentations, spreadsheets, and PDFs. Features document collaboration, multiple languages, strong privacy, and user support.

    52 WPS Office alternatives

    License model

    • FreemiumProprietary

    Country of Origin

    • CN flagChina

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad

    Top WPS Office Features

    1. Microsoft 365 Copilot icon  Compatible with Microsoft Office
    2.  Built-in PDF converter
    3.  Spell Checking
    4.  Tabbed interface
    5.  Sign PDF files
    6.  PDF compression
    7.  Ad-free
    8.  Works Offline
    9.  Cloud Sync
    10.  Real time collaboration
    11.  Split PDF files
    12.  Combine PDF

    WPS Office VS Open365

     
  8. OpenProject icon
     118 likes
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    Open source software that enhances team collaboration and productivity through features like Gantt charts, issue tracking, Scrum support, and document management. Supports classic, agile, or hybrid management styles while ensuring robust data protection and flexible task assignment.

    189 OpenProject alternatives

    License model

    • FreemiumOpen Source

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Self-Hosted
    • Software as a Service (SaaS)
    • Cloudron

    Top OpenProject Features

    1.  Kanban Board
    2.  Gantt-charts
    3.  Work Item Tracking
    4.  Agile boards
    5.  Timeline
    6.  Cloud Sync
    7.  Hierarchical Structure
    8.  Ad-free
    9.  WYSIWYG Support
    10.  Support for MarkDown
    11.  Scrum Boards
    12.  Cost estimate

    OpenProject VS Open365

     
  9. Claws Mail icon
     102 likes
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    Claws Mail is an email client (and news reader), based on GTK+, featuring

    Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility Robustness and stability.

    61 Claws Mail alternatives

    License model

    • FreeOpen Source

    Application types

    Platforms

    • Windows
    • Linux
    • BSD

    Properties

    1.  Lightweight
    2.  Privacy focused
    3.  Customizable

    Features

    1.  Extensible by Plugins/Extensions
    2.  Multiple Account support
    3.  IMAP Support
    4.  Spam Filter
    5.  Works Offline
    6.  No registration required
    7.  Ad-free
    8.  Dark Mode
    9.  Calendar Integration
    10.  Portable
    11.  GPG Encryption
    12.  Built-in RSS reader

    Claws Mail VS Open365

     
  10. Apple Mail icon
     237 likes
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    There’s big news attached. The best way to manage email on a Mac, according to Apple.

    72 Apple Mail alternatives

    License model

    • FreeProprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • iPhone
    • iPad
    • Online
    • Apple Watch

    Properties

    1.  Customizable

    Features

    1.  Bundled with macOS
    2.  Email Organizer
    3.  Multiple Account support
    4.  Dark Mode
    5.  Spam Filter
    6.  CardDAV Support
    7.  Exchange
    8.  CalDAV Support
    9.  Rich text editing
    10.  Encrypted Email

    Apple Mail VS Open365

     
  11. Zoho icon
     159 likes
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    An all-in-one online office suite designed for businesses, featuring ad-free and privacy-first tools such as word processor, spreadsheet, presentation application, CRM, email/webmail, and hosted wiki. Enables easy real-time collaboration and integration across various platforms.

    47 Zoho alternatives

    License model

    Country of Origin

    • IN flagIndia

    Platforms

    • Online

    Zoho Features

    1.  Ad-free
    2.  Calendar Integration
    3.  Passkey Support
    4.  Open API
    5.  Custom login portal
    6.  Encrypted Email
    7.  Workflow
    8.  Wiki
    9.  On Demand
    10.  Leadfeeder integration

    Zoho VS Open365

     
  12. EssentialPIM icon
     75 likes
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    The powerful, full-featured Personal Information Manager for Windows offering Email, Synchronization, Portability, Network support, Android and iOS versions.

    173 EssentialPIM alternatives

    License model

    • FreemiumProprietary

    Country of Origin

    • EE flagEstonia
    • European Union flagEU

    Platforms

    • Windows
    • Android
    • iPhone

    EssentialPIM Features

    Features

    1.  Personal Information Manager (PIM)
    2.  Portable
    3. Google Calendar icon  Google Calendar integration
    4.  Cloud Sync
    5.  Integrated Password Manager
    6.  Dark Mode
    7. Gmail icon  Gmail integration
    8.  Google Apps integration
    9. Google Contacts icon  Google contacts integration

    EssentialPIM VS Open365

     
12 of 38 Open365 alternatives