Explore listed European alternatives to US authentication. This shortlist is generated from directory records and is not a hands-on product test.
We select up to ten active software listings with the highest directory data-completeness scores. Within that selection, products marked as recommended in an active directory comparison appear first, followed by data completeness. Completeness measures how much information a profile contains; it is not a score for performance, privacy or customer satisfaction.
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Zitadel is an open-source identity and access management platform developed by the European company Zitadel. It provides developers with tools for user authentication, authorization, and secure data management. The platform supports various protocols and integrates easily with existing applications, ensuring a streamlined user experience.
privacyIDEA is an open source authentication server designed to enhance security through multi-factor authentication. It supports various authentication methods including OTP, U2F, and SSH keys. The system is modular, written in Python, and can integrate with existing applications like VPNs and web portals. It is enterprise-ready and offers transparency through its open development process on GitHub.
Bare.ID offers a German self-hostable authentication solution designed for developers seeking control over their identity management. It provides a customizable open-source platform, allowing seamless integration with existing systems while ensuring data privacy and compliance with local regulations.
Rauthy is a lightweight Identity Provider supporting OpenID Connect, OAuth 2, and PAM. It is designed for easy setup and operation with secure defaults and flexible configuration options. The application emphasizes strong security, including Passkeys and passwordless login options, and is written in Rust for efficiency and speed.
Looking to switch from a specific US product? Browse listed European alternatives:
This shortlist includes Zitadel, privacyIDEA, Bare.ID, Rauthy. Open each product profile to compare its listed features, pricing and origin. Availability and terms can change, so confirm details with the provider.
We select up to ten active software listings with the highest directory data-completeness scores. Within that selection, products marked as recommended in an active directory comparison appear first, followed by data completeness. Completeness measures how much information a profile contains; it is not a score for performance, privacy or customer satisfaction.
No. Company origin, hosting location and contractual terms are separate details. Check the provider’s data-processing agreement, available hosting regions and subprocessors for your intended use. A directory listing is not a compliance certification.
Try the features you need with sample data, check supported export and import formats, and confirm pricing and account recovery options. Keep your existing service until you have checked that your important data and workflows transfer successfully.
Compare any two products side-by-side or browse our migration guides for step-by-step switching instructions.
