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Newest downloads

Ready to increase your reach? Start building apps now for Windows 8.1 Update and Windows Phone 8.1. The Windows SDK and the Windows Phone 8.1 SDK are components of Visual Studio 2013 Update 2. Get the details.

Windows 8.1

Looking for the free update from Windows 8 to Windows 8.1? Start here! (If you have an older version of Windows, you can also purchase Windows 8.1 online.)

Get Windows 8.1 online

Are you an MSDN subscriber? You can get ISO and .msi downloads here:

Get Windows 8.1 from MSDN Subscriber Downloads

Visual Studio Express 2013 for Windows

Create innovative and compelling Windows Store apps on Windows 8.1 using the tools in Visual Studio Express 2013 for Windows. The tools include a full-featured code editor, a powerful debugger, a focused profiler, and rich language support that you can use to build apps that you write in HTML5/JavaScript, C++, C#, or Visual Basic. Visual Studio Express 2013 for Windows also includes a device simulator that you can use to test Windows Store apps on multiple devices. Get details and additional languages.

Get the Windows SDK

Get the headers, libraries, and tools you need to create Windows Store apps, in the language of your choice. (Includes the Windows App Certification Kit.) Learn more about the Windows SDK for Windows 8.1.

DirectX SDK

Actually, the DirectX SDK is now included as part of the Windows SDK (starting with the Windows 8 release). Learn more, or go ahead and get the Windows SDK now (the download link is just to the left of this paragraph).

Windows Phone SDK

The Windows Phone Software Development Kit (SDK) includes all of the tools that you need to develop apps and games for Windows Phone.

Get the Windows Phone SDK

Set up your dev environment

Wondering where to start?

Learn what tools you can download to get started building Windows Store apps for Windows 8.1.

Toolkits and extensions

Windows App Certification Kit

Test your app before you submit it for certification and listing in the Windows Store. Learn more about the Windows App Certification Kit.

Visual Studio Extensions for the Windows Library for JavaScript

Resources that enable you to more easily build Windows Store apps using the Windows Library for JavaScript (WinJS). For more info, see Writing code for Windows Store apps.

Multilingual App Toolkit

Tools to help you localize your Windows Store app with translation support, translation file management, and editor tools. Get details and additional languages.

Remote Tools for Visual Studio 2013

Remote Tools for Visual Studio 2013 enables remote debugging, remote testing, and unit testing on computers that don't have Visual Studio installed. Get the Remote Tools.

Related SDKs

Microsoft Advertising SDK for Windows 8.1

Use advertising to monetize your apps while presenting a rich and engaging advertising experience to your users. Learn more about the Microsoft Advertising SDK for Windows 8.1, which is included in Visual Studio 2013.

Live SDK

A set of controls and APIs that enable apps to integrate Single Sign On (SSO) with your Microsoft account and access information from OneDrive and Learn more about the Live SDK.

Bing Maps SDK for Windows Store apps

Combine the power of Windows 8.1 and Bing Maps to incorporate the latest road maps and aerial views into your Windows Store app. This SDK includes controls for apps built using JavaScript, as well as apps built using C#, C++, and Visual Basic. Get the Bing Maps SDK.

Microsoft Azure Mobile Services

Add a scalable and secure cloud backend as well as incorporate structured storage, user authentication, and push notifications. Get Microsoft Azure Mobile Services.

Sample app pack

Hundreds of samples from Microsoft to help jumpstart your project quickly. You can also download samples for a specific programming language, browse individual samples, copy code inline, and leave comments in the samples gallery.

Get the Windows 8.1 app samples pack

Get the Universal app samples pack

Design assets

Design your app with these essential assets, including templates, wireframes, and design guidelines. Get the design downloads.

Featured partners

Improve your app with services from our featured partners.

Windows Store logos and device chassis downloads

Windows Store logos show your customers that your app is available in the Windows Store. Download the Windows Store logos and device images.

Windows Store apps developer downloads