Best European alternatives to Auth0 in 2026

foxids.com

Cybersecurity

Verified

FoxIDs is a Danish-owned identity platform for application teams, founded in 2018 and developed in Denmark. Manage users and add login, single sign-on and multi-factor authentication for customers, employees and partners. Connect applications and external identity providers using OpenID Connect, OAuth 2.0, SAML 2.0 and WS-Federation. Customise login flows and manage configuration through FoxIDs Control or its documented REST API. FoxIDs Cloud is hosted in France. Self-hosted and hybrid deployments are also available, so organisations can choose who operates their identity platform. FoxIDs is ISO 27001 certified. Security and compliance information is available at https://trust.foxids.com/. A free Cloud plan and paid plans are available. A European alternative to Auth0, Okta and Microsoft Entra ID for application identity, with practical support for integration and migration.

Zitadel

Cybersecurity

EU Mentions

Zitadel is an open-source identity and access management platform offering authentication, authorization, and user management. It supports SSO, OAuth2, OIDC, and MFA, making it a developer-friendly alternative to Auth0 or Keycloak.