ASP.NET Core
| ASP.NET Core | |
|---|---|
| Original author | Microsoft |
| Developers | .NET Foundation and the open source community |
| Release | June 7, 2016 |
| Stable release | 10.0.0 
/ 11 November 2025 |
| Written in | C# |
| Operating system | Linux, macOS, Windows |
| Platform | Cross-platform |
| Type | Web framework |
| License | MIT License |
| Website | dotnet |
| Repository | |
ASP.NET Core is an open-source modular web-application framework. It is a redesign of ASP.NET that unites the previously separate ASP.NET MVC and ASP.NET Web API into a single programming model. Despite being a new framework, built on a new web stack, it does have a high degree of concept compatibility with ASP.NET. The ASP.NET Core framework supports side-by-side versioning so that different applications being developed on a single machine can target different versions of ASP.NET Core. This was not possible with previous versions of ASP.NET. ASP.NET Core initially ran on both the Windows-only .NET Framework and the cross-platform .NET. However, support for the .NET Framework was dropped beginning with ASP.Net Core 3.0.
Blazor is a recent, optional component that supports WebAssembly. Since version 5.0, Blazor has dropped support for some older web browsers, including Microsoft Edge Legacy and Internet Explorer 11.