@auth/core is a powerful authentication library designed for modern web applications. It provides a flexible and extensible framework for implementing authentication and authorization in various environments, including server-side applications and APIs. With its straightforward API and support for multiple authentication strategies, @auth/core simplifies the process of securing applications. However, there are several alternatives in the authentication landscape that developers can consider:

• express-jwt is a middleware for Express applications that helps to secure routes by validating JSON Web Tokens (JWTs). It is particularly useful for protecting API endpoints and ensuring that only authenticated users can access certain resources. If you are building an Express-based application and need a simple way to handle JWT authentication, express-jwt is a solid choice. It integrates seamlessly with Express and provides a straightforward way to enforce authentication on your routes.

• jsonwebtoken is a library for creating and verifying JSON Web Tokens. It allows developers to generate tokens that can be used for authentication and authorization in web applications. While it does not provide middleware like express-jwt, it is essential for handling the creation and verification of JWTs. If you need fine-grained control over token generation and validation, jsonwebtoken is a great option to consider, especially when combined with other middleware for handling authentication.

• passport is a comprehensive authentication middleware for Node.js applications. It supports a wide range of authentication strategies, including local authentication, OAuth, and OpenID. Passport is highly extensible and can be integrated into various frameworks, making it a versatile choice for developers looking to implement authentication in their applications. If you require a robust solution that supports multiple authentication methods and is well-documented, passport is an excellent alternative.

For a detailed comparison of these packages, check out the link: Comparing @auth/core vs express-jwt vs jsonwebtoken vs passport.