Build a Feathers UI project as a Windows app

Feathers UI may be used to build desktop applications targeting Microsoft's Windows operating system.


In addition to the dependencies specified in the Feathers UI installation instructions, building a Windows application with Feathers UI has some additional requirements.

  • A computer running Microsoft Windows. Windows apps cannot be built on other operating systems, such as macOS or Linux.
  • Install Visual Studio. The Community edition is free.


To build for the windows target, run the following command.

openfl build windows

Use the -debug flag to create a build to include extra debugging information, including full stack traces when there's an exception or crash.

openfl build windows -debug

The build's output will be written to the bin/windows/bin folder.

Your project.xml file may optionally specify an output folder different from bin.

<app path="Export"/>

In the example above, the output would be generated in Export/windows/bin instead.

Run / Debug

OpenFL provides the test command to compile and launch your project executable on Windows.

openfl test windows


In the future, common error messages and their solutions will appear in this section.

Did you get some other error message that you don't understand?

Configuring OpenFL to build for native targets, like Windows or macOS, can be a little tricky! Head over to either the Feathers UI community forum or the Feathers UI Discord. Explain which command you tried to run, be sure to mention that you are targeting windows, and post the error message (and any additional relevant output). Ideally, we can help you figure out a solution, and then we'll also add it to this troubleshooting section, so that everyone can benefit.