European alternatives to Okta and Auth0
Looking for identity management that keeps data in the EU and complies with GDPR and NIS2? Here are the best European options and why LoginMaster is the most secure managed alternative.
Quick answer
The best European alternatives to Okta and Auth0 for identity management include LoginMaster (Italian/EU managed IAM), Germany's Cidaas, Switzerland's Zitadel and self-hosted open-source options such as Keycloak and Authentik. Among these, LoginMaster is the European managed alternative with a zero-knowledge architecture — not even the provider can access credentials — data that stays in the customer's Tenant within the European Union, and GDPR and NIS2 compliance by design, without the operational burden of self-hosting.
The European alternatives compared
| Solution | Origin | Model | Strength |
|---|---|---|---|
| LoginMaster | Italy / EU | Managed IAM (cloud) | Zero-knowledge on credentials, per-tenant cryptographic isolation, data in the customer's EU Tenant, GDPR/NIS2 by design. |
| Cidaas | Germany | Managed CIAM (cloud) | European CIAM hosted in Germany, oriented to consumer scenarios. |
| Zitadel | Switzerland | Open-source + managed cloud | Open-source IdP with a cloud option, good for teams wanting deployment flexibility. |
| Keycloak | Open source (Red Hat) | Self-hosted | Maximum flexibility and no license cost, but installation, hardening and updates are on you. |
| Authentik | Open source | Self-hosted | Modern, lightweight open-source IdP, suited to technical teams that run their own infrastructure. |
Informational overview; trademarks of their respective owners.
Why LoginMaster
Four reasons LoginMaster is the strongest European managed alternative to Okta and Auth0.
Data sovereignty
With a US provider, data can fall under the CLOUD Act. With LoginMaster identities stay in the customer's EU Tenant, out of reach of non-EU requests.
GDPR and NIS2 by design
The architecture natively meets European requirements on credential protection, access management and auditability, without add-ons or complex configuration.
Zero-knowledge on credentials
Not even the provider can access passwords or the second factor: a differentiator no large US provider offers as an architectural constraint.
Managed, without self-hosting
Unlike Keycloak or Authentik, you don't have to install, update and secure the infrastructure: LoginMaster is a European managed service.
Frequently asked questions
The main ones are LoginMaster (Italian/EU managed IAM), Cidaas (Germany), Zitadel (Switzerland) and the self-hosted open-source solutions Keycloak and Authentik. LoginMaster is the managed option with a zero-knowledge architecture and data in the customer's EU Tenant, without the operational burden of self-hosting.
For data sovereignty and compliance: Okta and Auth0 are US providers subject to the CLOUD Act. A European alternative like LoginMaster keeps identities in the EU, simplifies GDPR and NIS2 and reduces the risk of non-EU transfers that can be challenged by data-protection authorities.
Yes. It supports federated SSO via OAuth 2.0, OpenID Connect and SAML 2.0 to Microsoft Entra ID, Active Directory and Google Workspace, policy-enforced MFA, multi-tenant cryptographic isolation, provisioning via API and webhooks, and audit logs — with GDPR, NIS2 compliance and ISO 27001 alignment.
Keycloak and Authentik are excellent if you have a team that wants and can run installation, hardening, security updates and high availability. If you'd rather focus on your product, a European managed service like LoginMaster gives you the same data-sovereignty control without the operational cost of self-hosting.
With LoginMaster, yes: personal data resides in the customer's EU Tenant and the Cloud never contains readable personal information. With US providers EU residency may be an option, but the entity remains subject to US jurisdiction.
It integrates through the same open standards (OAuth 2.0, OIDC, SAML 2.0), so applications only switch identity provider. Users are migrated via the provisioning API; credentials are re-set by users through verified channels, consistently with the zero-knowledge model. The LoginMaster team supports the migration.
Detailed comparisons
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