Paperclip

Paperclip provides a hybrid approach to building UIs that allows you to design & code in parallel. It focuses purely on the visual aspect of your app - just HTML, CSS, and primitive components, that you can then directly import into your web application. Paperclip currently works React, more support frameworks & languages are planned.

With Paperclip, you see what you're creating as you're typing, no matter how large your project is. Other features such as artboards, measuring tools, and responsive testing tools are there to help you build pixel-perfect UIs in no-time. Your designers will love you.