Authentication & Identity
Part of Backend Services
User auth, SSO, identity management
Services(9)
Ownership Structure
Deployment
License Type
Country
Friendly Captcha
German privacy-first CAPTCHA that uses proof-of-work puzzles instead of tracking, fully GDPR compliant.
Authelia
Open source authentication server.
Zitadel
Swiss open source identity management. Auth0 alternative.
Keycloak
Open source identity and access management by Red Hat.
Ory
Open source identity infrastructure.
hCaptcha
Privacy-focused CAPTCHA alternative that doesn't sell user data. Offers GDPR-compliant bot protection with EU data processing options.
Authentik
German open-source identity provider with SAML, OAuth2, LDAP support and flexible authentication flows.
SuperTokens
Open source Auth0 alternative.
Onfido
London-based identity verification platform using AI for document verification and biometric checks.
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.