authentik vs Duo Access Management: Side-by-Side Comparison (2026)

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..

Duo Access Management: Access management solution with MFA, SSO, passwordless auth & adaptive policies. built by Duo Security. Core capabilities include Multi-factor authentication with multiple methods (Duo Push, SMS, passcodes, biometrics, WebAuthn), Single sign-on for application access, Passwordless authentication..

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

authentik differentiates with Multi-factor authentication, Single sign-on with OAuth2/OIDC and SAML2 support, Application proxy. Duo Access Management differentiates with Multi-factor authentication with multiple methods (Duo Push, SMS, passcodes, biometrics, WebAuthn), Single sign-on for application access, Passwordless authentication.

authentik is developed by authentik. Duo Access Management is developed by Duo Security. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

authentik and Duo Access Management 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.