authentik vs Duo Passport: 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 Passport: SSO solution that reduces authentication prompts via continuous trust verification. built by Duo Security. Core capabilities include Invisible authentication with single login, Continuous trust evaluation using risk-based policies, Session sharing between browsers and desktop applications..

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

Both tools share capabilities in multi-factor authentication. authentik differentiates with Single sign-on with OAuth2/OIDC and SAML2 support, Application proxy, Conditional access controls. Duo Passport differentiates with Invisible authentication with single login, Continuous trust evaluation using risk-based policies, Session sharing between browsers and desktop applications.

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