Hanko

Open-source, passkey-first authentication platform for web applications. Handles user onboarding, sign-in, and account management with configurable flows that combine passkeys, passcodes, OAuth, and optional passwords. GDPR compliant and hosted in Europe with full data control.

Trusted by thousands of developers and organizations such as SAP, Volt.io, and Papermark. Hanko differentiates from Auth0, Clerk, and similar providers with a passkey-native stack and FIDO2-certified infrastructure. Move between self-hosted deployment and managed cloud without vendor lock-in.

Key capabilities:

• Passkey-first auth with optional fallbacks: passcodes, passwords, and social logins
• Hanko Elements: framework-agnostic Web Components for auth and profile UI
• Passkey API to add passkeys to existing auth stacks without full migration
• Configurable flows: passwordless default, passwords optional, social-only, or passkeys-only
• 2FA with TOTP and hardware security keys
• Self-hosted or cloud deployment with data migration between both

Adoption spans SaaS products, fintech, and B2B applications. Developers choose it for frictionless passkey rollout, Next.js and React integrations, and compliance needs such as PSD2. Drop-in auth components reduce integration time while keeping data ownership and deployment flexibility.