Auth0 Single Sign On vs authentik: Side-by-Side Comparison (2026)

Auth0 Single Sign On: SSO platform enabling users to authenticate once across multiple applications. built by Auth0. Core capabilities include Universal Login customizable authentication interface, Single Sign On across multiple applications, Single Sign Off session termination..

authentik: Open-source identity provider with SSO, MFA, and application proxy capabilities. built by authentik. Core capabilities include Multi-factor authentication, Single sign-on with OAuth2/OIDC and SAML2 support, Application proxy..

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

Auth0 Single Sign On differentiates with Universal Login customizable authentication interface, Single Sign On across multiple applications, Single Sign Off session termination. authentik differentiates with Multi-factor authentication, Single sign-on with OAuth2/OIDC and SAML2 support, Application proxy.

Auth0 Single Sign On is developed by Auth0. authentik is developed by authentik. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Auth0 Single Sign On and authentik serve similar Access Management use cases: both are Access Management tools, both cover Authentication, Single Sign On, MFA. Review the feature comparison above to determine which fits your requirements.