ADFS to Keycloak Migration: Replacing Windows Federation with Open Source IAM
Not every organization wants to move from ADFS to Microsoft Entra ID. Some want to stay vendor-neutral, keep identity infrastructure on-premises, or simply avoid per-user licensing costs. Keycloak fills that gap — it handles SAML 2.0, OIDC, and integrates directly with Active Directory via LDAP federation. The migration isn’t trivial, though. ADFS and Keycloak have different architectural models, and some ADFS features don’t have direct Keycloak equivalents. This guide covers the practical steps, common blockers, and configuration patterns you’ll need. ...