Firebase Authentication vs Keycloak
Learn how Firebase Authentication and Keycloak 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.
Firebase Authentication
Keycloak
Feature Comparison
Keycloak offers broader feature coverage than Firebase Authentication, supporting 30 features compared to 22. Keycloak fully covers authentication and machine to machine (m2m) authentication and more, and both tools fully cover branding.
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
Email templates and FirebaseUI can be localized; set the language with a `languageCode` property or override CSS for more than 40 languages
The UI is internationalized. Administrators can enable multiple languages and users can choose their language at login or in the account/admin consoles
| Firebase Authentication | Keycloak | |
|---|---|---|
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 | ||
Email templates and FirebaseUI can be localized; set the language with a `languageCode` property or override CSS for more than 40 languages | The UI is internationalized. Administrators can enable multiple languages and users can choose their language at login or in the account/admin consoles |
Compliance Comparison
Firebase Authentication offers significantly broader coverage than Keycloak, supporting 6 certifications and regulatory frameworks compared to 0 for Keycloak. Since Keycloak is open source and does not include compliance certifications, you’ll need to manage compliance yourself.
CCPACompliant
GDPRCompliant
ISO 27001Certified
ISO 27017Certified
ISO 27018Certified
SOC2Compliant| Compliance | Firebase Authentication | Keycloak |
|---|---|---|
| CCPACompliant | ||
| GDPRCompliant | ||
| ISO 27001Certified | ||
| ISO 27017Certified | ||
| ISO 27018Certified | ||
| SOC2Compliant |
Descope —
Authsignal —