🛡️ Keycloak

Short description:

Keycloak is an open-source identity and access management solution that supports SSO, OAuth2, OpenID Connect, and SAML. It provides features like user federation, identity brokering, and fine-grained access control.

Where it's used:

Ideal for centralized authentication across microservices, internal admin portals, and third-party integrations. I'm using it as an auth-server for all my applications