Keycloak vs Microsoft Entra ID: Side-by-Side Comparison (2026)

Keycloak: Open-source IAM solution for SSO, MFA, and identity federation. built by keycloak. Core capabilities include Single sign-on (SSO), Multi-factor authentication with passkeys and recovery codes, Identity federation with external providers..

Microsoft Entra ID: Cloud-based identity and access management solution for enterprises. built by Microsoft. Core capabilities include Multi-factor authentication (MFA), Single sign-on (SSO), Passwordless authentication..

Both serve the Access Management market but differ in approach, feature depth, and target audience.

Both tools share capabilities in single sign-on (sso). Keycloak differentiates with Multi-factor authentication with passkeys and recovery codes, Identity federation with external providers, OpenID Connect, OAuth 2.0, and SAML 2.0 protocol support. Microsoft Entra ID differentiates with Multi-factor authentication (MFA), Passwordless authentication, Risk-based conditional access policies.

Keycloak is developed by keycloak. Microsoft Entra ID is developed by Microsoft. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Keycloak and Microsoft Entra ID serve similar Access Management use cases: both are Access Management tools, both cover MFA, Single Sign On, Authentication. Review the feature comparison above to determine which fits your requirements.