Best Auth0 Alternatives (2 Free OSS)
Authentication and authorization IDaaS platform
https://auth0.comAuth0 is widely used as a managed authentication service, but per-MAU pricing becomes expensive at scale. devpick lists OSS alternatives for building self-hosted authentication infrastructure.
- SSO via OIDC and SAML 2.0 for building single sign-on on your own infrastructure
- Social login integrating GitHub, Google, Apple, and other OAuth providers
- LDAP integration for Active Directory and LDAP user synchronization
- Auth flow customization with GUI-based flow builders in Keycloak and authentik
- No MAU limits with unlimited users when self-hosted
2 tools
keycloak
33,770JavaApache-2.0
Open Source Identity and Access Management For Modern Applications and Services
Free
authentik
20,869PythonNOASSERTION
The authentication glue you need.
Open Core
How to Choose
For proven enterprise authentication infrastructure choose Keycloak, and for modern UI with flexible flow building choose authentik.