LiveReload applies CSS/JS changes to Safari or Chrome w/o reloading the page

A behavior for Internet Explorer allowing it to recognize and render various CSS3 box decoration properties

Run your Jasmine specs without a browser

The Holy Grail of testing for front-end development; execute browser-less, console-based, javascript + DOM code right from within...

Johnson wraps JavaScript in a loving Ruby embrace. It embeds the Mozilla SpiderMonkey JavaScript runtime as a C extension.