Asgardeo Auth JS Core is an OpenID Connect (OIDC) Software Development Kit (SDK) for JavaScript applications. It provides the core utils to build SDKs for all JavaScript platforms and libraries such as Node.js, React and Angular. I contributed significantly to this SDK from scratch, enabling it to be used across multiple JavaScript platforms. This SDK simplifies the integration of OIDC authentication and authorization into JavaScript applications, allowing developers to easily implement secure user authentication and access control. It supports various OIDC flows, token management, and user session handling, making it a comprehensive solution for JavaScript developers looking to incorporate OIDC into their applications.