A playground for application coding. This application features a code editor and a live preview of the application.
http://www.qooxdoo.org/qxl.playground/
Clone this repo and compile it:
$ git clone https://github.com/qooxdoo/qxl.playground
$ cd qxl.playground
$ qx package install
$ npm install
$ qx serve
Then open http://localhost:8080