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Keycloak

Keycloak

Open-source identity and access management

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FreeAuthSecurityOpen Source4 impressions

Keycloak - the open source identity and access management solution. Add single-sign-on and authentication to applications and secure services with minimum effort.
AuthSecurityOpen Source

Keycloak is a free alternative to Auth0.

Keycloak is an open-source identity and access management solution providing SSO, social login, and fine-grained authorization.

for
Developers and ops teams needing centralized authentication for apps and services
pricing
open source
license
Apache-2.0
keycloak/keycloak 37k 9.0kJavaupdated 2 days ago
works withOpenID ConnectOAuth 2.0SAML 2.0LDAPActive Directory

Key features

6 features of Keycloak
  • Single-Sign-On — Users log in once to access multiple applications without re-authenticating.
  • Identity Brokering & Social Login — Add social network or external OpenID Connect/SAML providers via the admin console without code changes.
  • User Federation — Connect to existing LDAP or Active Directory directories, or custom user stores.
  • Admin & Account Consoles — Central UI for managing apps, users, policies and for users to manage profiles and MFA.
  • Authorization Services — Define fine-grained permission policies beyond role-based access.
  • Standard Protocol Support — Built-in OpenID Connect, OAuth 2.0 and SAML 2.0 support.

Use cases

  • Enable SSO across internal microservices
  • Add social login (Google, Facebook, etc.) to a web app
  • Integrate legacy LDAP users into a modern application
  • Implement fine-grained resource permissions for APIs

Keycloak vs alternatives

all alternatives →
KeycloakAuth0WorkOSFirebaseBetter Auth
Best forOpen-source SSO and auth managementManaged SaaS authenticationEnterprise SSO APIsGoogle-centric app authTypeScript-first auth framework
PricingOpen sourceSubscriptionSubscriptionSubscriptionFree
DevHunt upvotes00000
Launched—————
  • Keycloak vs Auth0: Auth0 is a hosted commercial service, while Keycloak is self-hosted open source.
  • Keycloak vs WorkOS: WorkOS focuses on enterprise SSO and directory sync as APIs, Keycloak offers full server and UI.
  • Keycloak vs Firebase: Firebase Auth is a cloud service with tight Google ecosystem integration; Keycloak is platform-agnostic and self-hosted.
  • Keycloak vs Better Auth: Better Auth is a TypeScript library for auth logic; Keycloak provides a complete server and UI solution.

Keycloak FAQ

Do I need to store user credentials myself?+

No, Keycloak handles user storage and authentication, including password policies and MFA.

Can Keycloak work with existing LDAP/Active Directory?+

Yes, it has built-in user federation to connect to LDAP or AD servers.

What protocols does Keycloak support?+

Keycloak supports OpenID Connect, OAuth 2.0 and SAML 2.0.

Is social login possible without code changes?+

Yes, social providers are added through the admin console configuration.

How does Keycloak handle logout across apps?+

It provides single-sign-out so logging out from one app logs the user out of all connected apps.

Summarized by DevHunt from keycloak.org · Oct 1, 2026. Details may change; check the official site.

About this listing

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