Highlight.js. GWT Project. CoffeeScript. Handlebars.js: Minimal Templating on Steroids. YUI Library. Closure Tools. The Closure Tools project is an effort by Google engineers to open source the tools used in many of Google's sites and web applications for use by the wider Web development community.
Web applications have evolved from simple HTML pages into rich, interactive applications that provide a great user experience. Today's web apps pose a challenge for developers, however: how do you create and maintain efficient JavaScript code that downloads quickly and works across different browsers? The Closure tools help developers to build rich web applications with web development tools that are both powerful and efficient. The Closure tools include: Dojo. Cappuccino. The Miso Project. Datejs.