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Microsoft 365 vs Collabora Online: catalog facts
Microsoft 365	Collabora Online
Freemium Free web versions are available. Desktop apps require a paid subscription.	Freemium A free development edition exists. Supported production use requires a paid subscription.
Windows, macOS, Android, iOS, Web	Linux, Web, Self-hosted
The reference implementation of the formats everyone else has to match Desktop, web and mobile apps with real-time co-authoring	Edits ODF and Office formats natively, with no conversion step Integrates directly into Nextcloud and similar platforms
Subscription pricing, with the desktop apps behind it Closed source, and heavily tied to a Microsoft account	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, Hosted service	Self-hosted, Web application
Closed source	Open source
License not stated	License not stated
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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