Authentik

authentik provides a self‑hosted identity provider that implements modern single sign‑on protocols such as SAML, OAuth2/OIDC, LDAP, and RADIUS. It manages user authentication, authorization, and lifecycle operations, allowing organizations to replace external IdP services with an open‑source solution that can be deployed on premises or in cloud environments. The system includes a web interface for administration and supports integration with existing applications and services through standard federation standards.

The software is intended for businesses of any size, from small test labs to large production clusters, and offers deployment options that match the scale of the environment. Small setups can use Docker Compose, while larger deployments are supported via Helm charts for Kubernetes, AWS CloudFormation templates, and a DigitalOcean Marketplace app. Documentation covers installation, configuration, and developer guidance for extending the platform.

authentik is released under the MIT license, with additional licensing for enterprise features, and includes community resources such as a Discord channel, translation support, and a public contribution process. Security policies are documented, and the project encourages user feedback and shared adoption stories.