Duo Directory vs Keycloak: side-by-side comparison (2026)

Duo Directory: IAM solution with user directory, SSO, MFA, and passwordless authentication. Built by Duo Security.

Keycloak: Open source IAM server providing SSO, identity brokering, federation, and authorization. Built by Keycloak.

The table above shows where their features, integrations, deployment and company size fit differ.

Duo Directory is made by Duo Security. Keycloak is made by Keycloak. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. Duo Directory and Keycloak are both Access Management products, and both cover Single Sign On, MFA, Authentication. Use the table above to see where features, deployment and company size fit differ.