KeylineA simple, fast and secure open-source OIDC provider

Integrate authentication in minutes

Multi-Tenancy

Manage multiple clients, organizations, or environments from a single Keyline instance.

Strong token handling, refresh tokens, configurable lifetimes, and robust access controls.

Support modern auth standards out of the box.

Easy to deploy and integrate; minimal dependencies.

REST APIs, SDKs, and full documentation.

Deploy Keyline in your own environment or use the hosted SaaS platform—full flexibility.

Fully open-source, transparent, and extensible. Contribute or self-host with confidence.