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Auth0 vs Zitadel: The Protocol Support Face-Off

Discover how US-based Auth0 and Swiss Zitadel measure up in protocol support for secure and flexible authentication solutions.

Last updated: March 7, 2026โ€ขReviewed by Built in EU Team

Should You Switch to Zitadel?

What You Gain

Gain full GDPR compliance and enhanced data privacy

Privacy advantage
Trade-offs

Potentially fewer features compared to Auth0

Auth0 has more features
Bottom Line

Switch if privacy is priority; stay if you need extensive features

At a Glance

Data Location
๐Ÿ‡บ๐Ÿ‡ธUS

US data laws

๐Ÿ‡จ๐Ÿ‡ญCH

GDPR protected

Pricing

Auth0

Contact

Zitadel

Contact

Migration
Medium difficulty~A few hours to a day, depending on data size and complexity

Privacy & Compliance Comparison

Critical data sovereignty factors at a glance

CriteriaAuth0Zitadel
Server Location
US (AWS), EU (optional)CH (Swiss hosted)
GDPR Compliance
Partial (SCCs)Full
Open Source
E2E Encryption
Enterprise onlyOptional
Data Portability
PartialFull export

CLOUD Act Notice

Auth0 is a US company and must comply with CLOUD Act data requests, even for data stored in EU data centers. Zitadel is not subject to US jurisdiction.

Switching from
Auth0 logo

Auth0

๐Ÿ‡บ๐Ÿ‡ธ

Okta

VS
Switching to
Zitadel logo

Zitadel

๐Ÿ‡จ๐Ÿ‡ญ

Zitadel

US Data Storage

Data subject to US CLOUD Act and may be accessed by US authorities

EU Data Protection

Data protected under GDPR with EU-only data residency

Certifications & Compliance

No certifications listed

EU-Based
GDPR Compliant
Open Source
Self-Hostable
Swiss hosted

Reasons to Switch

  • โœ“Zitadel is GDPR compliant, ensuring EU data protection.
  • โœ“Open-source allows for customization and transparency.
  • โœ“Swiss hosting offers strong data privacy laws.
  • โœ“Self-hostable option for full control over data.

Things to Consider

  • !Migration from Auth0 may require significant effort.
  • !Learning curve for teams unfamiliar with Zitadel.
  • !Potential missing features compared to Auth0.
Migration difficulty:
Medium
~A few hours to a day, depending on data size and complexity

Migration Overview

Full guide
Difficulty
Medium
Time Estimate
~A few hours to a day, depending on data size and complexity

Depends on data size and complexity

Quick Steps

1

Create Zitadel account and configure settings

2

Export and prepare data from Auth0

3

Import data, test integrations, and migrate users

Other alternatives to Auth0

Ready to make the switch?

Start using Zitadel today and take control of your data privacy.