authentik

About

authentik is an open-source identity provider for single sign-on, supporting SAML, OAuth2/OIDC, LDAP, and RADIUS. It is built for self-hosting at any scale, from small home labs to large production clusters, and ships an enterprise offering aimed at organizations replacing commercial IdPs such as Okta, Auth0, Entra ID, and Ping Identity. Deployment options include Docker Compose for small or test setups and Kubernetes for larger installations.