.NET Core vs .NET Framework – A Complete Comparison for Developers

In the world of Microsoft development, two major platforms dominate the backend landscape: .NET Framework and .NET Core. While they share a common heritage, they serve different purposes and are optimized for different scenarios. Let’s break down their differences step by step

🏛️ .NET Framework: The Legacy Giant

Overview

.NET Framework is the original implementation of .NET, released in 2002. It’s a Windows-only platform designed for building desktop applications (like WinForms and WPF) and web applications using ASP.NET.

Key Features

  • Windows-centric: Runs only on Windows OS.

  • Mature ecosystem: Rich libraries, stable APIs, and long-term enterprise support.

  • ASP.NET Web Forms & MVC: Traditional web development models.

  • Full support for WCF, WF, and older tech stacks.

Use Cases

  • Enterprise apps are tightly coupled with Windows.

  • Legacy systems that rely on older APIs.

  • Applications using technologies like WCF, Windows Services, or COM Interop.