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.NET Framework and .NET SDKs

The .NET Framework is the easiest way to build apps on the Microsoft platform. You can download Visual Studio Express for free, and be coding in just a few minutes. You can also use the .NET SDKs and targeting packs to build apps for a given Microsoft platform, such as Microsoft Azure.

What's New with .NET Framework

.NET Framework and .NET SDK Downloads

Roslyn ships v1.0-rc2 with "Go-Live" license
For the last six years you've heard us go on and on about this Roslyn thing and how it's the platform for the future and would change everything and t... more
Roslyn ships v1.0-rc2 with "Go-Live" license
For the last six years you've heard us go on and on about this Roslyn thing and how it's the platform for the future and would change everything and t... more
Rounding out Visual F# 4.0 in VS 2015 RC
Today marks the release of Visual Studio 2015 RC, which includes the latest updates to the Visual F# 4.0 language and tools. Download the RC here, an... more
.NET Announcements at Build 2015
At the Build conference today, Scott Guthrie announced the .NET Framework 4.6 RC and Visual Studio 2015 RC. He also announced important updates for .N... more

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.NET Compiler Platform ("Roslyn")

The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs. You can build code analysis tools with the same APIs that Microsoft is using to implement Visual Studio!

Microsoft .NET Native

.NET Native compiles C# to native machine code that performs like C++. You will continue to benefit from the productivity and familiarity of the .NET Framework with the great performance of native code. Popular Windows Store apps start up to 60% faster and use 15-20% less memory when compiled with .NET Native.

.NET Framework Development Guide

Learn how to create, configure, debug, secure, and deploy your .NET Framework apps with our roadmap. Check out the how-to and walkthrough directory to find the code examples that you need. Also learn how to write cross-platform libraries with Portable Class Libraries.

What’s New in the .NET Framework 4.5

Read about the many new features and enhancements, including the new asynchronous programming model, the new HTTP API, Workflow authoring and versioning enhancements, and support for creating Windows Store apps.

Developing Apps for Microsoft Platforms

Visit MSDN to learn about creating apps that build your business, for Windows Store, Windows Phone, and Microsoft Azure.

Featured Partners

Red Gate Software
Red Gate provides essential tools for .NET and SQL Server. Products include the industry-leading ANTS Performance Profiler, for optimizing code, and SQL Compare, for deploying database changes.