Hanko

Hanko is a privacy-first, open source authentication platform built in Germany that puts developers in complete control of their authentication stack. Unlike traditional auth providers, Hanko offers seamless migration between self-hosted and cloud deployments with zero vendor lock-in.

Key features include:

• Passkey-first authentication with FIDO2 certification for phishing-resistant security
• Flexible authentication methods: passwords, 2FA, SSO, OAuth, and passcodes
• Hanko Elements: Framework-agnostic web components for instant integration
• GDPR compliance by design with data minimalism principles
• Complete API control for custom frontend and mobile implementations

The platform supports multiple authentication flows - from passwordless-only setups to traditional password systems, social logins, or hybrid approaches. Hanko Elements provide drop-in UI components that work with any web framework, featuring customizable styling to match your brand.

Trusted by 10,000+ developers, Hanko offers both a complete authentication solution and a standalone Passkey API for adding WebAuthn support to existing systems. Built with European privacy standards, hosted in Europe, and designed for developers who refuse to compromise on security or data ownership.