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Auth0 vs Keycloak: Which Secures Your Data Privacy?

Explore how Auth0 from the US and Keycloak from the EU prioritize your data's security. Discover the best choice for privacy-conscious users today.

Last updated: February 6, 2026Reviewed by Built in EU Team

Should You Switch to Keycloak?

What You Gain

Enhanced privacy and compliance with EU regulations.

Privacy advantage
Trade-offs

Potential loss of advanced features and integrations.

Auth0 has more features
Bottom Line

Switch if privacy is paramount; stay with Auth0 for features.

At a Glance

Data Location
🇺🇸US

US data laws

🇪🇺EU

GDPR protected

Pricing

Auth0

Contact

Keycloak

Contact

Migration
Hard difficulty~1-2 weeks

Privacy & Compliance Comparison

Critical data sovereignty factors at a glance

CriteriaAuth0Keycloak
Server Location
US (AWS), EU (optional)EU
GDPR Compliance
FullFull
Open Source
E2E Encryption
Enterprise onlyOptional
Data Portability
Full exportFull 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. Keycloak is not subject to US jurisdiction.

Switching from
Auth0 logo

Auth0

🇺🇸

Okta

VS
Switching to
Keycloak logo

Keycloak

🇪🇺

Keycloak

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

Open Source
Self-Hostable
EU-hosted

Reasons to Switch

  • Keycloak is open source, allowing for full code customization.
  • Keycloak supports GDPR compliance with EU-based servers.
  • Self-hosting Keycloak can reduce long-term operational costs.
  • Keycloak offers optional E2E encryption for enhanced data security.

Things to Consider

  • !Migration from Auth0 to Keycloak may require significant data transfer.
  • !Keycloak's user interface may have a steeper learning curve.
  • !Some Auth0 features like anomaly detection may be missing in Keycloak.
Migration difficulty:
Hard
~1-2 weeks

Migration Overview

Full guide
Difficulty
Hard
Time Estimate
~1-2 weeks

Depends on data size and complexity

Quick Steps

1

Plan migration timeline and backup all data

2

Set up Keycloak with custom configuration

3

Migrate in phases, test thoroughly at each step

Other alternatives to Auth0

Ready to make the switch?

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