Keycloak vs Clerk
Learn how Keycloak and Clerk differ in their key features like authentication, enterprise auth, security, user management and compliance, so you can decide which of these authentication providers is best for you.
Keycloak

Feature Comparison
Both tools offer comparable feature coverage, with Keycloak supporting 38 features and Clerk supporting 38. Consider your specific needs regarding authentication, enterprise auth, security, user management and extensibility when making your decision. Keycloak fully covers machine to machine (m2m) authentication, and both tools fully cover authentication and branding and more.
Session idle and max lifespans and offline sessions can be adjusted to keep sessions alive for longer periods
Admins can view and revoke user and client sessions, sign out all sessions, and configure session lifespans in the admin console
The UI is internationalized. Administrators can enable multiple languages and users can choose their language at login or in the account/admin consoles
In beta, and support has to enable it.
| Keycloak | Clerk | |
|---|---|---|
Session idle and max lifespans and offline sessions can be adjusted to keep sessions alive for longer periods | ||
Admins can view and revoke user and client sessions, sign out all sessions, and configure session lifespans in the admin console | ||
The UI is internationalized. Administrators can enable multiple languages and users can choose their language at login or in the account/admin consoles | ||
In beta, and support has to enable it. |
Compliance Comparison
Clerk offers broader coverage than Keycloak, supporting 2 certifications and regulatory frameworks compared to 0 for Keycloak. Since Keycloak is open source and does not include compliance certifications, youβll need to manage compliance yourself.
| Compliance | Keycloak | Clerk |
|---|---|---|
