Keycloak is an open-source identity and access management (IAM) solution that provides authentication and authorization services for applications and APIs. It enables organizations to centralize user login, registration, and role management while supporting modern security standards such as OAuth 2.0, OpenID Connect, and SAML. With Keycloak, users can sign in once and access multiple connected systems through single sign-on (SSO), reducing password fatigue and improving security. It also supports features like multi-factor authentication (MFA), social login integration, user federation with LDAP or Active Directory, and customizable login flows.
Designed for cloud-native and enterprise environments, Keycloak can be deployed on-premises or in containers and integrated into web, mobile, and backend applications. Administrators can define realms, clients, roles, and fine-grained permissions to control access across services. Its extensibility through themes, custom providers, and REST APIs allows organizations to adapt it to complex identity requirements, making it a popular choice for securing microservices architectures and modern distributed systems.
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