Open source Collabora Online alternatives

All Collabora Online alternatives

1. 

   

   ONLYOFFICE

   3.6(176) · App StoreLike

   ONLYOFFICE is an office suite from Ascensio System with editors for documents, spreadsheets, presentations, PDFs and forms, built around Microsoft Office formats. The desktop and mobile apps are free, and the online editors can be self-hosted or integrated into Nextcloud and other platforms, with paid cloud and enterprise editions. It supports real-time co-editing, plugins and AI assistants.

   12 ONLYOFFICE alternatives

   Pros

   • Strong compatibility with Microsoft Office formats
   • Free desktop and mobile apps, plus self-hostable online editors
   • Real-time co-editing and Nextcloud integration

   Cons

   • A self-hosted server needs technical setup
   • Enterprise features and support require paid editions
   • Fewer advanced features than Microsoft Office

   Cost / License

   FreemiumOpen source

   Categories

   Office SuitesWord ProcessorsSpreadsheets & Databases

   Platforms

   WebWindowsMacLinuxiPhoneAndroidSelf-hosted

   Features

   AI assistantMicrosoft Office file compatibilityOffline modePlugins & extensionsReal-time collaborationTrack changes

   Visit websiteMore about ONLYOFFICE
2. 

   

   LibreOffice

   4.5KstarsLike

   LibreOffice is a desktop office suite maintained by The Document Foundation, with Writer, Calc, Impress, Draw, Base and Math. It uses the OpenDocument format natively and opens and saves Microsoft Office files. It is free for any use, works fully offline and can be extended with community extensions and templates.

   12 LibreOffice alternatives

   Pros

   • Free for any use, with no account or subscription
   • Full suite with Writer, Calc, Impress, Draw and Base
   • Native OpenDocument support and fully offline use

   Cons

   • Interface feels dated next to Microsoft 365
   • Complex Office files can lose formatting
   • No real-time collaboration in the desktop apps

   Cost / License

   FreeOpen source

   Categories

   Office SuitesWord ProcessorsSpreadsheets & Databases

   Platforms

   WindowsMacLinux

   Features

   Ad-freeMicrosoft Office file compatibilityOffline modePlugins & extensionsTemplatesTrack changes

   Visit websiteMore about LibreOffice
3. 

   

   Nextcloud

   4.7(10.4K) · App StoreLike

   Nextcloud is an open source platform you install on your own server to sync and share files, keeping data under your control instead of with a third-party cloud. Beyond file storage with desktop and mobile clients, its app store adds calendars, contacts, video calls (Talk), online office editing and many other extensions. Self-hosting is free, and Nextcloud GmbH sells enterprise support.

   12 Nextcloud alternatives

   Pros

   • Keeps files on your own server instead of a third-party cloud
   • App store adds calendars, contacts, Talk calls and office editing
   • Desktop and mobile clients for every major platform

   Cons

   • Installing, securing and updating the server is your responsibility
   • Performance can be sluggish without careful server tuning
   • Quality varies across third-party apps

   Cost / License

   FreemiumOpen source

   Categories

   Cloud Storage & File Sharing

   Platforms

   WebWindowsMacLinuxiPhoneAndroidSelf-hosted

   Features

   File syncFile versioningLink sharingPhoto backupPlugins & extensions

   Visit websiteMore about Nextcloud