IdentityServer

IdentityServer is a modern and flexible solution for implementing authentication and authorization in .NET applications. Built by the team at Duende Software, it provides a secure and standards compliant foundation for identity, access control, and single sign on across distributed systems. IdentityServer is widely trusted by organizations that need robust security, long term stability, and reliable commercial support.

Here are the qualities that make IdentityServer a strong choice:

• Full support for OpenID Connect and OAuth 2.0 with clean and well structured APIs
• Ideal for single sign on, API security, federation scenarios, and complex identity workflows
• Mature, battle tested architecture trusted by enterprises and large scale systems
• Commercial license that ensures predictable usage terms and ongoing development
• Priority support from the IdentityServer creators for fast and expert guidance
• Highly customizable components for token handling, consent, claims management, and UI flows
• Smooth integration with ASP.NET Core and modern .NET security features
• Designed with security best practices and compliance requirements in mind

IdentityServer empowers teams to centralize authentication, secure APIs, and unify identity across multiple applications and services. Its combination of open technology, commercial backing, and deep security expertise makes it ideal for organizations that want control over their identity platform without giving up reliability or compliance. When long term support and professional guidance matter, IdentityServer delivers a dependable and future ready solution.