keycloak

    keycloak/keycloak

    #293 this week

    Open Source Identity and Access Management For Modern Applications and Services

    authentication
    keycloak
    oidc
    saml
    Java
    Apache-2.0
    36.8K stars
    8.9K forks
    36.8K GitHub watchers
    Updated 9/13/2026
    View on GitHub

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    Use Cases & Benefits

    • Provides open source identity and access management for modern applications and services.
    • Enables secure authentication and authorization with minimal setup, avoiding the need to manage user storage or authentication logic.
    • Use for integrating single sign-on and user federation in enterprise web applications.
    • Use for implementing fine-grained authorization policies in microservices architectures.
    • Use for securing REST APIs and services using standard protocols like OIDC and SAML.

    About keycloak

    Keycloak

    GitHub Release OpenSSF Best Practices CLOMonitor OpenSSF Scorecard Artifact Hub GitHub Repo stars GitHub commit activity Translation status

    Open Source Identity and Access Management

    Add authentication to applications and secure services with minimum effort. No need to deal with storing users or authenticating users.

    Keycloak provides user federation, strong authentication, user management, fine-grained authorization, and more.

    Help and Documentation

    Reporting Security Vulnerabilities

    If you have found a security vulnerability, please look at the instructions on how to properly report it.

    Reporting an issue

    If you believe you have discovered a defect in Keycloak, please open an issue. Please remember to provide a good summary, description as well as steps to reproduce the issue.

    Getting started

    To run Keycloak, download the distribution from our website. Unzip and run:

    bin/kc.[sh|bat] start-dev
    

    Alternatively, you can use the Docker image by running:

    docker run quay.io/keycloak/keycloak start-dev
    

    For more details refer to the Keycloak Documentation.

    Building from Source

    To build from source, refer to the building and working with the code base guide.

    Testing

    To run tests, refer to the running tests guide.

    Writing Tests

    To write tests, refer to the writing tests guide.

    Contributing

    Before contributing to Keycloak, please read our contributing guidelines. Participation in the Keycloak project is governed by the CNCF Code of Conduct.

    Joining a community meeting is a great way to get involved and help shape the future of Keycloak.

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