Auth0 Platform vs Keycloak: Side-by-Side Comparison (2026)

Auth0 Platform: Developer-focused customer identity platform for authentication & authorization. built by Okta. Core capabilities include Universal Login with customizable branding and UI components, Passwordless authentication, Social login..

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..

Both serve the Multi-Factor Authentication and Single Sign-On market but differ in approach, feature depth, and target audience.

Both tools share capabilities in single sign-on (sso). Auth0 Platform differentiates with Universal Login with customizable branding and UI components, Passwordless authentication, Social login. 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.

Auth0 Platform is developed by Okta. Keycloak is developed by keycloak. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Auth0 Platform and Keycloak serve similar Multi-Factor Authentication and Single Sign-On use cases: both are Multi-Factor Authentication and Single Sign-On tools, both cover Single Sign On, MFA, Authentication. Review the feature comparison above to determine which fits your requirements.