juniorASP.NET

What is ASP.NET and how does it work?

Updated Apr 28, 2026

Short answer

ASP.NET is a web framework by Microsoft for building dynamic web applications using .NET.

Deep explanation

ASP.NET allows developers to build web apps using languages like C#. It runs on the CLR (Common Language Runtime), handling requests via a pipeline that processes HTTP requests and returns responses. Modern ASP.NET Core is cross-platform, high-performance, and modular.

Real-world example

Building REST APIs for mobile or web applications.

Common mistakes

  • Confusing ASP.NET with ASP.NET Core
  • assuming it only works on Windows.

Follow-up questions

  • What is CLR?
  • Why ASP.NET Core?

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