Better Auth vs Keycloak
Learn how Better Auth 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.
Better Auth
Keycloak
Feature Comparison
Both tools offer comparable feature coverage, with Better Auth supporting 33 features and Keycloak supporting 30. Consider your specific needs regarding authentication, enterprise auth, security, user management and extensibility when making your decision. Both tools fully cover authentication.
Magic link and email OTP plugins allow passwordless sign-in using one-time links or codes
Supports multiple social providers through built-in OAuth and generic OAuth plugin for custom providers
The passkey plugin adds FIDO2 / WebAuthn support for passwordless, phishing‑resistant sign‑in
Session settings allow you to configure expiresIn and updateAge to create longer or shorter sessions
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
Multi-language is supported via the i18n plugin
The UI is internationalized. Administrators can enable multiple languages and users can choose their language at login or in the account/admin consoles
| Better Auth | Keycloak | |
|---|---|---|
Magic link and email OTP plugins allow passwordless sign-in using one-time links or codes | ||
Supports multiple social providers through built-in OAuth and generic OAuth plugin for custom providers | ||
The passkey plugin adds FIDO2 / WebAuthn support for passwordless, phishing‑resistant sign‑in | ||
Session settings allow you to configure expiresIn and updateAge to create longer or shorter sessions | 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 | ||
Multi-language is supported via the i18n plugin | 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
Neither Better Auth nor Keycloak provide compliance certifications and regulatory frameworks, as both are open source. You’ll need to handle compliance requirements on your own.
Other tool comparisons to consider
Authsignal vs Keycloak
Authgear vs Keycloak
Engity vs Keycloak
Amazon Cognito vs Keycloak
Entra External ID vs Keycloak
Firebase Authentication vs Keycloak
Clerk vs Keycloak
WorkOS vs Keycloak
Frontegg vs Keycloak
FusionAuth vs Keycloak
Supabase Auth vs Keycloak
Auth.js vs Keycloak
Ory vs Keycloak
SuperTokens vs Keycloak
Descope — Drag & drop customer and agentic identity platform for any app