European alternatives to Zotero

US non-profit open-source reference manager for researchers.

Corporation for Digital Scholarship · Outside Europe

About Zotero

Company
Corporation for Digital Scholarship
HQ
United States
Zone
Outside Europe

Key concerns

Non-European ownershipSubject to US CLOUD Act
#1

Citavi

51 · Mixed Origins

Switzerland · Research & reference

A long-established reference-management and knowledge-organisation tool popular in German-speaking academia, developed in Switzerland. Now owned by US firm Lumivero.

Freemium · from Free tier available Free tier EFTA

Looking for all European Research & reference alternatives? Browse the full list →

Did you know? Storing data on European servers does not protect you from US law if the company is American-owned.

Why avoid United States-owned services?

CLOUD Act

Allows US authorities to compel American companies to hand over data stored anywhere in the world.

FISA Section 702

Permits mass surveillance of non-US persons' data held by US tech providers, without a warrant.

GDPR vs US law

Transferring personal data to US companies may conflict with EU data protection rules under GDPR.

These concerns apply to all United States tech companies — see our full analysis →