IdentityServer4 is dead. Here’s what comes next.

IdentityServer4 is dead. Here’s what comes next.

In a significant shift within the identity and access control software landscape, Duende Software announced the end of IdentityServer4 as an open-source project in December 2022. This decision has left many developers and organizations grappling with the implications of transitioning to a commercial model. The impact of this change is profound, as IdentityServer4 has been a cornerstone for many applications relying on secure user authentication and authorization methods. The move has sparked a wave of discussions in the developer community, raising questions about the future of identity management solutions.

The Rise and Fall of IdentityServer4

IdentityServer4 was initially released as an open-source framework designed to implement the OpenID Connect and OAuth 2.0 protocols. It quickly gained popularity due to its extensibility, flexibility, and robust feature set. Developers appreciated its ability to provide secure authentication for web applications, APIs, and microservices without the need to build complex systems from scratch. However, the announcement from Duende Software to commercialize IdentityServer comes as a disappointment to many, particularly those who relied on the open-source model for their projects.

Community Reactions

The developer community's reaction has been mixed. While some understand the need for sustainable business models in software development, others express frustration over losing a free tool that they have relied on for years. Many have taken to online forums and social media platforms to voice their concerns, discussing alternatives and strategies for transitioning away from IdentityServer4. The consensus appears to be a desire for clarity regarding what options are available and how to proceed in the wake of this change.

For organizations that have built their systems around IdentityServer4, the transition to a commercial model can be daunting. Duende offers a commercial version of IdentityServer, which provides continued support and additional features, but at a cost. Organizations need to assess the value of this investment against the backdrop of their budget constraints and project requirements. Furthermore, the transition could necessitate significant development efforts to integrate the new system without disrupting ongoing operations.

Exploring Alternatives

In light of IdentityServer4's commercialization, many developers are exploring alternative solutions for identity and access management. Several frameworks and services are available, offering similar functionalities. Some notable alternatives include:

• Auth0: A robust, cloud-based solution that provides extensive identity management features and a wide range of integrations.


• Keycloak: An open-source identity and access management solution that offers features similar to IdentityServer4.


• Okta: A well-known enterprise-grade identity solution that provides user management, authentication, and security features.


• FusionAuth: A developer-friendly identity management solution that is open-source and offers flexible customization options.

Each of these alternatives comes with its own set of advantages and limitations, and developers must assess their specific use cases and requirements to find the right fit.

The Future of Identity Management

The commercialization of IdentityServer4 signals a broader trend in the software industry where open-source projects are increasingly being monetized. As organizations demand more robust support and features, software companies are exploring ways to sustain their operations financially. This shift raises questions about the future of open-source software, particularly in the realm of identity and access management. Developers and organizations need to weigh the benefits of open-source solutions against the support and features offered by commercial products.

As the dust settles from Duende Software's announcement, the future of identity management remains uncertain but filled with potential. Developers must adapt to these changes by exploring new tools and solutions that fit their needs while remaining vigilant about the evolving landscape of identity and access control. The legacy of IdentityServer4 will undoubtedly influence the next generation of identity management solutions, as developers seek to create secure and efficient systems for user authentication and authorization.

In conclusion, while IdentityServer4 may be dead, the conversation surrounding identity management is very much alive. Organizations must take proactive steps to navigate this transition, ensuring that they continue to prioritize security and user experience in their applications.