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LibreOfficeCollabora Online
Free

Free software under the Mozilla Public License v2.0, funded by donations and by companies…

 Freemium

A free development edition exists. Supported production use requires a paid subscription.

Windows, macOS, Linux Linux, Web, Self-hosted
  • One suite with six tools: Writer, Calc, Impress, Draw, Base and Math
  • Opens and saves Microsoft Office formats as well as OpenDocument
  • Edits ODF and Office formats natively, with no conversion step
  • Integrates directly into Nextcloud and similar platforms
  • Complex Word and Excel documents can shift layout, particularly with heavy formatting or macros
  • The interface looks dated next to Microsoft 365 unless you switch to a tabbed layout
  • Server-side rendering is resource hungry for many concurrent users
  • The free development edition has a user limit; production use is a paid subscription
Downloadable app Self-hosted, Web application
Open source Open source
License: MPL-2.0 License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 20, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.