Koala is a GUI application for Less, Sass, Compass and CoffeeScript compilation, to help web developers to use them more efficiently. Koala can run in windows, linux and mac.

Paged.js is an open-source library to paginate content in the browser. Based on the W3C specifications, it’s a sort of polyfill for Paged Media and Generated Content for Paged Media CSS modules.

Easily create sites that work offline as well as online. UpUp is a tiny JavaScript library that makes sure your users can always access your site's content, even when they're on a plane, in an elevator, or 20,000 leagues under the sea.