.NET Core and ASP.NET Core are related but distinct technologies that are often used together to build modern web applications. Here's a brief overview of the differences between them:
.NET Core is a cross-platform, open-source framework for building applications. It includes a range of features and tools for building modern applications, such as an optimized runtime, a comprehensive standard library, and support for various programming languages, including C#, F#, and Visual Basic.
ASP.NET Core, on the other hand, is a web framework built on top of .NET Core. It includes a range of features and tools for building web applications and services, such as routing, middleware, and dependency injection. ASP.NET Core is designed to be modular and flexible, allowing developers to choose the components and features they need for their specific application.
In other words, ASP.NET Core is a specialized web framework that is built on top of the general-purpose .NET Core framework. ASP.NET Core includes all of the features and tools of .NET Core, but it also includes additional features and tools that are specifically designed for building web applications and services.
Overall, if you're building a web application or service, you'll likely want to use ASP.NET Core to take advantage of its specialized features and tools. However, if you're building a general-purpose application, you may be able to use the broader range of features and tools provided by .NET Core.