The .NET Framework is Microsoft's comprehensive and consistent programming model for building applications that have visually stunning user experiences, seamless and secure communication, and the ability to model a range of business processes.

The Microsoft .NET Framework 4 redistributable package installs the .NET Framework runtime and associated files that are required to run and develop applications to target the .NET Framework 4.

The .NET Framework 4 works side by side with older Framework versions. Applications that are based on earlier versions of the Framework will continue to run on the version targeted by default.

The words .NET Core in vibrant purple. The words .NET Framework in vibrant purple. The Visual Studio logo.


Cross-platform .NET implementation. The smallest download to build .NET apps, using command line tools and any editor.

.NET Framework

Windows-only .NET implementation. Run existing .NET applications on Windows.

Visual Studio

Integrated Development Environment (IDE) for developing .NET apps on Windows. Includes .NET Core and .NET Framework.

Download .NET Core 2.0.3 SDK Download .NET Framework 4.7.1 Download Visual Studio