# Test - Build - Submit

## Test

1. Your application uses the same rendering and JavaScript Engine as Microsoft Edge so most of you testing can be done on your website and in the browser.

2. To test your application on a device, download the ManifoldJS test harness from the Store, and follow the directions. _Coming soon!_

3. To test locally, in the folder for your app, type "ManifoldJS run windows".

> **Note:** Looking for some debugging tools that work on all your platforms? Try [Vorlon.js](http://www.vorlonjs.com/). It makes mobile testing a breeze, and works inside the app ManifoldJS apps.

## Build

### With Visual Studio

1. Download and install Visual Studio (community edition works fine) and open the source code folder.

2. Open the Project in Visual Studio.

3. Use the store commands from Visual Studio to create the app package.

### With the Windows 10 SDK

1. Download the [Windows 10 SDK](http://dev.windows.com/en-US/windows-10-developer-preview-tools) (must be running Windows 10 Technical preview).

2. Build with [these instructions](https://msdn.microsoft.com/en-us/library/windows/desktop/hh446767(v=vs.85).aspx) for MakeAppX.

## Submit to Store

1. Set up a Microsoft Developer account [here](http://dev.windows.com/en-us).

2. Reserve the name of your app.

3. Upload your appx package.