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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, 2026โ€ขReviewed 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
๐Ÿ‡บ๐Ÿ‡ธUS

US data laws

๐Ÿ‡ช๐Ÿ‡บEU

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

๐Ÿ‡บ๐Ÿ‡ธ

Okta

VS
Switching to
Keycloak logo

Keycloak

๐Ÿ‡ช๐Ÿ‡บ

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

  • โœ“Keycloak is open source, allowing for full code customization.
  • โœ“Keycloak supports GDPR compliance with EU-based servers.
  • โœ“Self-hosting Keycloak can reduce long-term operational costs.
  • โœ“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.