Esokia: expert web agency on ASP.NET Core web framework
ASP.NET Core is the open-source version of ASP.NET, that runs on Windows, Linux, macOS, and Docker.
ASP.NET is a popular web-development framework for building web apps on the .NET platform.
ASP.NET Core is the open-source version of ASP.NET, that runs on macOS, Linux, and Windows. ASP.NET Core was first released in 2016 and is a re-design of earlier Windows-only versions of ASP.NET.
Performance is a key focus of ASP.NET Core. It's faster than other popular web frameworks in the independent TechEmpower benchmarks.
Modern & innovative
ASP.NET Core is designed to allow runtime components, APIs, compilers and languages evolve quickly, while still providing a stable and supported platform to keep apps running.
ASP.NET Core provides various support lifecycle options to meet the needs of your app. You can choose a long-term support release, or run with the latest release if you commit to upgrading more often. See the support policy for more details.
Like the rest of .NET, ASP.NET is open source on GitHub. Over 60,000 developers and 3,700 companies have already contributed to .NET.
active OSS contributors
OSS company contributors
Windows, Linux, macOS, and Docker
ASP.NET Core apps can be developed and run on Windows, Linux, macOS, and Docker.
The Visual Studio family of products has tools for building .NET apps on any operating system. There are also command line tools and extensions for many popular editors.
The ASP.NET Core runtime that your app runs on can be deployed as part of your app, or installed centrally on your web server. ASP.NET Core is also perfectly suited for Docker containers.
Develop ASP.NET Core apps
Interactive client-side Blazor apps - Develop with reusable UI components that can take advantage of WebAssembly for near-native performance
RESTful web API apps - Develop RESTful HTTP services with ASP.NET Core web API
Page-focused web UI with Razor Pages - Develop page-focused web apps with a clean separation of concerns
Real-time web apps with SignalR - Add real-time functionality to your web app, enable server-side code to push content instantly
Remote Procedure Call (RPC) apps - gRPC services - Develop contract-first, high-performance services with gRPC in ASP.NET Core
Data-driven web apps - Create data-driven web apps in ASP.NET Core
You can build your own version of ASP.NET from source code, but most production apps need a supported version of the platform.
Microsoft ships official releases of .NET that are built and tested on Microsoft-maintained servers in Azure and supported just like any Microsoft product. See the .NET Core support policy for details.
Red Hat supports .NET Core on Red Hat Enterprise Linux (RHEL). Red Hat builds .NET Core from source and makes it available in the Red Hat Software Collections. Red Hat and Microsoft collaborate to ensure that .NET Core works well on RHEL.