ASP.NET 

ASP.NET Core

Only some components of the ASP.NET Framework are open source.

ASP.NET Core is completely a free and open-source tool.

It runs only on ASP.NET Framework.

It runs on ASP.NET Core and ASP.NET Framework.

Performance is good.

Performance is very high than ASP.NET.

ASP.NET Framework is compatible only with the Windows operating system.

ASP.NET Core is compatible with various operating systems — Windows, Linux, and Mac OS.

It Supports Web-Forms, MVC and Web API.

It supports MVC, Web API and web pages of ASP.NET Core2.0. but does not support Web-Forms.

C#, VB, and many other languages can be used.

 C# and F# languages are only supportable.

All major versions supported.

Supports Visual Studio core from version 3 to current version.

Whenever we modify or update a code, we need to re-compile the program.

Whenever we modify or update a code, the Core Browser refresh will compile and execute the program itself, So no need to re-compile it again.

It is not suitable for any mobile application development. But used for the development of both desktop and web applications.

It is not suitable for desktop application development, but suits well for development of web, windows mobile and windows store.

In case of mobile applications, it can be used on devices which work on android and windows OS, Xamarin’s tools is used to configure such mobile applications.

It is installed as a single package for Windows OS.

As it is cross-platform, it is packaged and installed individually depending on the operating system used.

ASP.NET Framework is heavy for Command Line Interface (CLI).

ASP.NET core gives a lightweight CLI.

Code access security is available for security purposes.

No such security features available.