Keycloak
Keycloak is an open-source Identity and Access Management tool that adds authentication to applications and secures services with minimal effort. It eliminates the need for storing or authenticating users, providing user federation, robust authentication, user management, and fine-grained authorization. Keycloak offers a Single-Sign On feature, allowing users to authenticate with Keycloak rather than individual applications, ensuring a seamless login experience across multiple applications. It also supports social login and can authenticate users with existing OpenID Connect or SAML 2.0 Identity Providers. Keycloak has built-in support to connect to existing LDAP or Active Directory servers and provides a centralized admin console for managing all aspects of the server. It also offers an account management console for users to manage their own accounts. Based on standard protocols, Keycloak supports OpenID Connect, OAuth 2.0, and SAML, and provides fine-grained authorization services for advanced permission management.