Keycloak review
A capable open-source IAM server for teams that want self-hosted SSO and federation.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Keycloak is an open-source identity and access management server for web applications, REST services, and other applications. It is designed for organizations that want to manage authentication and access controls themselves across web, Windows, Linux, API, and self-hosted environments. Its core capabilities include single sign-on and single sign-out, identity brokering, social login, user and account management, role-based access, and fine-grained authorization policies.
Protocol and directory coverage are central strengths. Keycloak supports OpenID Connect, OAuth 2.0, and SAML 2.0, while LDAP and Active Directory federation connect it to existing user directories. Authentication options include TOTP and HOTP one-time passwords, WebAuthn and passkeys, and recovery codes. Integrations with Docker, Podman, Kubernetes, and OpenShift support several deployment models, while Google, GitHub, Facebook, and Twitter are listed for social-login integration. Administrative and account-management consoles provide web-based control over the server and its identity functions.
The trade-off is operational ownership. Organizations deploy and manage Keycloak themselves through virtual machines, containers, Kubernetes, or OpenShift, so it suits teams prepared to run an identity service rather than buyers seeking a vendor-managed plan. SCIM user and group management is available as a documented API, but it is a preview feature and disabled by default. Choose Keycloak when open-source control, federation, MFA, passkeys, and infrastructure flexibility matter. Consider another option if your priority is a fully managed IAM service or a mature, enabled-by-default SCIM experience.
Keycloak pros and cons
- Where it wins
- Supports OpenID Connect, OAuth 2.0, and SAML 2.0
- Combines LDAP, Active Directory, MFA, passkeys, and social login
- Provides fine-grained authorization and SCIM user and group management APIs
- Where it doesn't
- Deployment and ongoing administration are managed by the organization
- SCIM support is a preview feature and disabled by default
- Requires self-hosted infrastructure such as virtual machines or containers
Keycloak fact sheet, pricing and score →
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