Hanko is an open-source authentication platform that handles user onboarding and login flows for web applications. It is GDPR-compliant and hosted in Europe, offering a self-hosted option or a managed cloud service (Hanko Cloud) with no vendor lock-in. Hanko supports a range of authentication methods that can be configured and combined based on application requirements: - Passkeys (WebAuthn-based, passwordless) - Passwords (optional, user-configurable) - Passcodes (one-time codes via email) - OAuth / Social login - Two-factor authentication (2FA) - Email verification during sign-up Login identifiers supported include email addresses and usernames. The platform provides pre-built UI components called Hanko Elements, which are framework-agnostic Web Components. These components cover login, user onboarding, and account management, and can be embedded directly into web applications without redirecting users. They support custom CSS for branding alignment. A JavaScript SDK is available (Hanko v2) for building custom login experiences. Hanko Elements work across any web technology stack due to their reliance on standard Web Components. Deployment options include: - Self-hosted (on-premise or own infrastructure) - Hanko Cloud (managed SaaS) The platform is trusted by 10,000+ developers and used by organizations including SAP, Papermark, volt.io, and others.