European Alternative

European Alternatives to Auth0

Mature product, but a US Okta subsidiary with corresponding sub-processor and jurisdiction exposure. Here are 1 GDPR-compliant European software alternatives that give your team clearer data residency, stronger jurisdiction guarantees, and privacy-first defaults.

Why switch from Auth0?

Many European teams are reconsidering their dependency on Auth0 due to evolving data protection requirements. Since the Schrems II ruling invalidated the EU-US Privacy Shield, transferring personal data to US-based services requires additional safeguards that can be complex to implement and maintain.

European alternatives offer structural advantages: data stays within EU or EEA jurisdiction by default, the provider operates under GDPR as primary law rather than an add-on, and procurement conversations become simpler when your tools share your regulatory framework.

Alternatives

1 European replacement for Auth0

Each tool below is headquartered in Europe, offers EU-hosted infrastructure, and provides a credible migration path from Auth0.

Z
Identity & SSO

ZITADEL

Open-source IAM for customer and workforce identity with OIDC, SAML, SCIM, and machine identity support.

CH Switzerland and EU regions on managed cloud, or self-hosted
Strong choice when you want a sovereign IAM platform without giving up modern SaaS ergonomics. View profile →
Comparison

How they compare

Key differences between Auth0 and European alternatives.

Tool HQ Hosting Open Source Self-Hostable
ZITADEL Sankt Gallen, Switzerland Switzerland and EU regions on managed cloud, or self-hosted Apache 2.0 Yes
Related

More European tools in this space

Other EU-hosted tools that complement these alternatives.

K
Identity & SSO

Keycloak

Mature open-source identity platform for SSO, federation, and authorization, with no required vendor data path when self-hosted.

EU Self-hosted; commonly deployed in EU-region Kubernetes clusters
Useful when you want full operational control of the IdP rather than another SaaS dependency. View profile →
Comparisons

Detailed comparison guides

In-depth side-by-side comparisons with Auth0.

ZITADEL vs Auth0

Side-by-side comparison of features, compliance, and hosting.

Frequently asked questions about Auth0 alternatives

Is Auth0 GDPR compliant?

While Auth0 offers GDPR features, the core challenge is that data may be processed in US jurisdiction, which creates complexity under Schrems II. European alternatives avoid this by keeping data within EU or EEA borders by default.

What is the best European alternative to Auth0?

The best choice depends on your team's needs. ZITADEL is a strong starting point — Open-source IAM for customer and workforce identity with OIDC, SAML, SCIM, and machine identity support.

Can I migrate from Auth0 to a European tool?

Most European alternatives listed here provide migration tools and import paths to help teams transition from Auth0 with minimal disruption.