EU Alternatives › Auth0
GDPR-compliant EU alternatives to Auth0 (2026)
Auth0 (now part of Okta, a US company) creates a structural GDPR compliance gap for EU data controllers. As a US entity, Auth0 is subject to the CLOUD Act and FISA 702, allowing US authorities to compel disclosure of authentication data stored on any Auth0 server — including the Auth0 EU tenant and EU-region deployments. Auth0's GDPR Data Processing Agreement and Standard Contractual Clauses cannot fully bridge this gap, as confirmed by the Schrems II ruling: US parent-company jurisdiction follows the data regardless of where servers are located. Authentication systems are a particularly sensitive GDPR risk surface — they hold every user's identity, login events, and session data. The EU-built identity and authentication providers listed below are headquartered in Europe, process login and user data exclusively on EU-owned infrastructure, and fall entirely outside US legal jurisdiction — the only way to eliminate Auth0's GDPR compliance risk rather than merely mitigate it.
The tools listed below are recorded as founded or headquartered in Europe. Switching to a European Auth0 alternative can reduce the need for Standard Contractual Clauses and simplify your GDPR compliance posture; whether a provider is also outside the CLOUD Act depends on its ownership and hosting, which are checked per listing. The 5 providers below are headquartered in Germany, Denmark, and Norway.
5 EU-built startups found
- Idura
Danish eID authentication and e-signature platform (formerly Criipto) — integrates MitID, Norwegian and Swedish BankID and the Finnish Trust Network.
Authentication, Identity Verification
- Curity
Swedish identity and API access platform. OAuth and OpenID Connect infrastructure for organisations where security and control are non-negotiable.
Authentication, Developer Tools
- Hanko
Open-source passkey and passwordless authentication from Kiel, Germany. Made and hosted in Europe, with self-hosting available.
Authentication, Developer Tools
- cidaas
German cloud identity and access management (CIAM) platform — made and hosted in Germany, with dedicated German server locations for regulated sectors.
Authentication, Developer Tools
FjordIDManaged OIDC/OAuth2 identity platform hosted on Hetzner in Germany. Drop-in Auth0 replacement with EU data residency and zero US subprocessors.
Authentication, Developer Tools
Also worth a look: FjordID, an early-stage managed OIDC/OAuth2 identity platform hosted in Germany. Disclosure: FjordID is built by the maker of this directory.
How to switch from Auth0 to an EU alternative
A three-step migration path that keeps your team running while you move to a European, GDPR-compliant identity management and sso provider.
- Export your data from Auth0. Use Auth0's built-in export to pull configuration and customer data into a portable format. Keep this archive as the baseline you can roll back to.
- Pilot an EU-headquartered provider. Pick one provider from the list above and run it in parallel for a small project. Verify the features you depend on, sign a Data Processing Agreement, and confirm the EU data-residency claims on the vendor's sub-processor list.
- Cut over and decommission Auth0. Migrate the rest of your data, update integrations, and switch DNS or config to point at the new provider. After a short overlap to verify behaviour, cancel your Auth0 subscription and update your records of processing activities.
Frequently asked questions
Is Auth0 GDPR compliant?
Auth0 is now operated by Okta, Inc. (Nasdaq: OKTA), a US-listed company headquartered in San Francisco, California. This means Auth0 falls under US legal jurisdiction regardless of which region hosts your data. Under the CLOUD Act (50 U.S.C. § 1881a) and FISA Section 702, US authorities can compel Okta/Auth0 to disclose authentication data — including identity tokens, user profiles, login events, and session records — stored on Auth0's EU tenant without notifying EU data subjects or their supervisory authorities. The Schrems II ruling (Case C-311/18) confirmed that Standard Contractual Clauses cannot fully close this gap when the data importer is a US-listed parent company. Auth0's GDPR Data Processing Agreement is extensive, but it mitigates the US-jurisdiction risk on paper only — it does not eliminate it. For EU data controllers processing end-user identities through Auth0, switching to an EU-headquartered identity provider is the only structural fix for GDPR compliance.
Why use an EU alternative to Auth0?
EU-headquartered alternatives are subject to EU law, which can simplify GDPR compliance and data transfer paperwork. Whether a provider is also outside US surveillance legislation such as the CLOUD Act depends on its ownership and hosting, which EU Alts checks per listing.
Are EU alternatives to Auth0 GDPR compliant?
Not automatically. A provider headquartered in the EU is subject to GDPR, but compliance still depends on the individual provider: a Data Processing Agreement, its sub-processor list, where data is hosted, and who ultimately owns the company. None of the 5 listings on this page currently has ownership and hosting recorded as European-only with a cited source, so treat each one as unverified until you have checked it yourself. Check each listing's recorded ownership and hosting, and ask the vendor for its DPA, before replacing Auth0.
How many EU alternatives to Auth0 are there?
EU Alts currently lists 5 EU-built alternatives to Auth0, headquartered in Germany, Denmark, and Norway. The directory is updated continuously as new European startups are submitted.
How much do EU alternatives to Auth0 cost?
Pricing varies by provider. Many EU identity management and sso alternatives to Auth0 publish their prices on their own websites, and some offer a free tier; EU Alts does not record prices, so compare the plans on each vendor's pricing page against your volume and feature needs.
How do I migrate from Auth0 to an EU alternative?
Most teams move from Auth0 to an EU-built alternative in three stages: (1) export your existing data from Auth0 in a standard format, (2) pilot one EU-headquartered provider from the list below with a small project or team, then (3) cut over once integrations and feature parity are confirmed. Migrations can almost always be done without downtime because the EU provider runs in parallel during the pilot — the cut-over itself is usually a DNS or configuration change.
Which EU alternative to Auth0 is best for European businesses?
If you specifically need EU data residency, the strongest picks are usually providers that are both EU-headquartered and EU-hosted, with public sub-processor lists and a signed Data Processing Agreement. From the list below, Idura (Denmark) is a common starting point because it is headquartered in Europe. The right choice ultimately depends on which identity management and sso feature set you depend on — check each listing's recorded ownership and hosting before relying on it, then compare on product fit.
Is Auth0 still GDPR-compliant after the Okta acquisition?
The Okta acquisition of Auth0 in May 2021 consolidated Auth0 under Okta, Inc., a US-listed company. Existing Auth0 Data Processing Agreements and sub-processor lists may have been superseded by Okta's DPA framework. From a GDPR standpoint, Auth0 GDPR compliance is now structurally the same as using any Okta product: data is processed by a US parent company subject to the CLOUD Act and FISA 702, regardless of which regional Auth0 tenant you use. EU controllers should verify their current Auth0 DPA, review the post-acquisition sub-processor list, and assess whether EU-hosted Auth0 tenants still satisfy Chapter V GDPR requirements.