Open Source Authentication & Identity Projects
Solutions for managing user authentication, single sign-on, and identity verification across applications.
View best authentication & identity ranked by popularity
Keycloak
Open-source identity and access management with SSO, OAuth2, OIDC, and SAML support for modern applications.
Alternative to:
Auth0
Auth0
Stack Auth
Open-source authentication platform for Next.js and React, built as an alternative to Auth0 and Clerk.
Alternative to:
Auth0
Auth0
SuperTokens
Open-source authentication solution, an alternative to Auth0 and Firebase Auth that you can self-host.
Alternative to:
Auth0
Auth0