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Independently verified · Quarterly re-audit
EU VETTED
Alternatives to

European alternatives to Microsoft Office Online.

Microsoft's web-based Office. Direct CLOUD Act exposure.

ALTERNATIVES
3
CLOUD-ACT · NONE
1
WITH BSI C5
0
FREE TIER
3

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TOP PICKS

Which are the closest Microsoft Office Online alternatives?

Ordered by feature parity and migration friction, which is weighted higher than feature breadth.

Collabora Online
United Kingdom · Founded 2012
EU-BASED
★ #1 PICK

Cambridge-based LibreOffice Online (MPL-2.0/LGPL) by Collabora Productivity Ltd: free CODE dev edition + €3/user/mo Business; self-hostable on EU infra.

Public DPA Sub-processors Open source
FROM
—
CLOUD ACT
MINOR
View profile →
OnlyOffice
Latvia · Founded 2009
EU-BASED
★ #2 PICK

Riga-based Latvian office suite (Ascensio System SIA), AGPLv3 self-hostable + DocSpace cloud; complex post-2023 Singapore+UK+Russian-origin ownership chain.

Public DPA Sub-processors Open source
FROM
—
CLOUD ACT
MINOR
View profile →
CryptPad
France · Founded 2014
EU-SOVEREIGN
★ #3 PICK

Paris-based E2E-encrypted open-source collaboration suite (CryptPad by XWiki SAS), NLnet/NGI-EU-funded; zero-knowledge architecture.

Public DPA Sub-processors Open source
FROM
—
CLOUD ACT
NONE
View profile →
SIDE-BY-SIDE

How do the 3 European alternatives to Microsoft Office Online compare?

All 3 alternatives, benchmarked against Microsoft Office Online.

Feature comparison

Beyond compliance: how these alternatives compare on the capabilities you actually use day to day.

Feature Collabora Online OnlyOffice CryptPad
Self-hostable Yes Yes Yes
Real-time collaboration Yes Yes Yes
Databases / tables No No Yes
Public publishing Yes
Version history Yes Yes Yes
Granular permissions Yes Yes
Offline mode Yes Yes No
AI assist Yes Yes
WHAT YOU'RE LEAVING
What are you leaving behind with Microsoft Office Online?

Listed for transparency. Every product on this page is benchmarked against this baseline.

Microsoft Office Online US-incorporated

Microsoft's web-based Office. Direct CLOUD Act exposure.

US-based
OWNERSHIP
US-OWNED
CLOUD ACT
DIRECT
HOSTING
Likely AWS · US
SCHREMS II
Default SCC + supp.
METHODOLOGY

How we verified each row above.

For every product we read the public DPA, sub-processors document, hosting region declaration, and corporate ownership records. Each is timestamped. Signals are editorial, re-verified quarterly. We never accept self-attestation.

Reviewed by the EU Vetted editorial team · Editorial guidelines

Read methodology →