Authentication & Identity
Part of Backend Services
User auth, SSO, identity management
Services(11)
Ownership Structure
Deployment
License Type
Country
Zitadel
Swiss open source identity management. Auth0 alternative.
Ory
Open source identity infrastructure.
Keycloak
Open source identity and access management by Red Hat.
SuperTokens
Open source Auth0 alternative.
Authelia
Open source authentication server.
Authentik
German open-source identity provider with SAML, OAuth2, LDAP support and flexible authentication flows.
Friendly Captcha
German privacy-first CAPTCHA that uses proof-of-work puzzles instead of tracking, fully GDPR compliant.
Bitwarden
Open-source password manager with secure sharing and developer secrets management.
HashiCorp Boundary
Identity-based access management for dynamic infrastructure, providing secure remote access without VPNs.
hCaptcha
Privacy-focused CAPTCHA alternative that doesn't sell user data. Offers GDPR-compliant bot protection with EU data processing options.
Onfido
London-based identity verification platform using AI for document verification and biometric checks.