Downloads for building Store apps
Now you can build a Store app that can target each form factor of Windows devices through the shared Windows Runtime in Windows 8.1 and Windows Phone 8.1. You start with a universal Windows app project template in Visual Studio. Then, use these SDKs, toolkits, samples, and services to build the universal Windows app you envision, and get it published in the Store. Read more
Visual Studio Express 2013 for Windows
Use this free tool to create innovative and compelling Windows Phone and Windows Store apps, including universal Windows apps, for all Windows devices. The tools include universal app templates, a full-featured code editor, a powerful debugger, Windows Phone emulators, rich language support, and more, all ready to use in production. Includes the Windows Phone SDK and Windows SDK.Get Visual Studio Express 2013 for Windows
Universal Windows app samples
This sample pack includes app code samples developed and updated using one of the universal app templates in Visual Studio 2013 Update 2. Each solution of a universal app code sample can run on Windows 8.1 and on Windows Phone 8.1.
Windows Phone 8.1 Update 1 Emulators
Add six emulator images to Visual Studio 2013 so you can test how your app will run on phones running Windows Phone 8.1 Update 1. (Requires Visual Studio 2013 Update 2 or later.) Learn more about Windows Phone 8.1 Update 1 Emulators.
Windows Phone 8.1 Emulators
This package adds six emulator images to an existing installation of Visual Studio so you can test how your app will run on phones running Windows Phone 8.1. This update requires Visual Studio 2013 Update 2 or later. The emulators are included with Visual Studio Express 2013 for Windows.
Windows Phone Preview
Registered developers can access prerelease Windows Phone operating system updates for their development phone, directly from Microsoft.
Windows Phone Store badges
Add a Windows Phone badge to let your customers know that your app is available in the Windows Phone Store.
Windows SDK for Windows 8.1
Get the headers, libraries, and tools you need to create Windows Store apps and desktop apps, in the dev language of your choice. Includes the .NET Framework 4.5.1 SDK, Windows App Certification Kit, and DirectX SDK. The SDK does not include a compiler or build environment. Learn more about the Windows SDK for Windows 8.1
Looking for the latest version of Windows? Start here!
Windows Store badges
Add a Windows Store badge to let your customers know your app is available in the Windows Store.
Windows 8.1 Store sample pack
Includes all the app code samples developed and updated for Windows 8.1, including app code samples created using the universal app templates in Visual Studio.
Toolkits and extensions
Multilingual App Toolkit
Tools to help you localize your Store app with translation support, translation file management, and editor tools.
Windows App Certification Kit
Use this kit to test your app for Windows 8.1 and Windows Phone 8.1 app certification programs.
Resources that make it easier to build Windows Store apps using the WinJS. For more info, see Writing code for Windows Runtime apps.
Remote Tools for Visual Studio 2013 Update 2
Gives you access to remote debugging, remote testing, and unit testing on computers that don't have Visual Studio installed. (Applies to Windows Store apps only.)
Microsoft Advertising SDK
Use advertising to monetize your apps while presenting a rich and engaging advertising experience to your users. This SDK was released as an update through Visual Studio in March 2014.
OneDrive for developers
Get the Live SDK for a set of controls and APIs, for building apps that can access information from OneDrive on Windows 8.1 and Windows Phone 8.1.
Bing Maps SDK for Windows 8.1 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.
Microsoft Azure Mobile Services
Add a scalable and secure cloud back end and incorporate structured storage, user authentication, and push notifications.
Actually, the DirectX SDK is now included as part of the Windows SDK (beginning with Windows 8).