.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.

.NET Framework Downloads

	.NET Framework 4.6 Preview
	.NET Framework 4.5.1
	.NET Framework 4.0
	.NET Framework 3.5 SP1
	.NET NuGet packages
	More .NET Framework downloads

Visual Studio Express (free)

	Windows 8
	Windows Desktop
	Windows Phone
	Web and Azure
	More Visual Studio downloads

What's New with .NET Framework

.NET Framework and .NET SDK Downloads

EF6.1.3 RTM Available
Today we are pleased to announce the availability of EF6.1.3. This patch release contains only high priority bug fixes. What’s in EF6.1.3? EF6.1.... more

.NET Core Open Source Update - February 26, 2015
It has been a couple weeks since we last reported on the .NET Core open source project. It's been a very fun time, watching more people get involved i... more

Edit & Continue and Make Object ID Improvements in CTP 6
It's the beginning of a new year! According to Back to the Future Part II, everyone will be riding hoverboards in a couple months (and, let's be hones... more

Get Started

	.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

Telerik Corporation
Telerik is the market-leader in ASP.NET AJAX, MVC, Silverlight, Windows 8, Windows Phone, WPF, Windows Forms, reporting, code analysis and refactoring tools across all Microsoft development platforms.

.NET Framework and .NET SDKs

.NET Framework Downloads

Visual Studio Express (free)

What's New with .NET Framework

Get Started

.NET SDK Downloads

Team blogs and social

Get Help

Language resources

Featured Partners