Head-to-head · Productivity
Microsoft 365 vs Collabora Online
Which one to pick in 2026 — comparing 🇺🇸 Microsoft 365 with the European alternative 🇪🇺 Collabora Online on the things that actually decide who can read your data.
Verdict
Who has stronger privacy guarantees by law?
Collabora Online — GDPR-native and outside the US CLOUD Act / FISA 702 reach.
Which one encrypts your data end-to-end by default?
Neither ships full E2E by default — check the table for nuance.
Which one tracks you for ads?
Neither monetises through ad tracking.
Which one is open source?
Collabora Online is open source. Microsoft 365 is proprietary.
Side-by-side
Microsoft 365 vs Collabora Online — full comparison
Make the switch
Try Collabora Online instead of Microsoft 365
Self-hostable online office suite based on LibreOffice.
Other European alternatives to Microsoft 365
Microsoft 365 vs Disroot
Volunteer-run platform of privacy-respecting online services.
Microsoft 365 vs Mailcow
Dockerized open-source mail server suite.
Microsoft 365 vs Open-Xchange
European communication and collaboration platform for telcos and ISPs.
Microsoft 365 vs CryptPad
Open-source, zero-knowledge and end-to-end encrypted collaboration suite.