1.keycloak / keycloak
Open Source Identity and Access Management For Modern Applications and Services
- keycloak
- oidc
- saml
+3,664 stars
from 34,040 · score 8.21
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5 repositories by Attention Score · May 9, 2026 – Nov 4, 2026 (UTC)
Open Source Identity and Access Management For Modern Applications and Services
Open source alternative to Auth0 / Firebase Auth / AWS Cognito
Apereo CAS - Identity & Single Sign On for all earthlings and beyond.
OpenAM is an open-source access management solution for identity authentication, authorization, and federation. It provides single sign-on, adaptive authentication, and centralized policy control, enabling secure access to web, mobile, and cloud applications
An OpenID Connect reference implementation in Java on the Spring platform.