JS Bin is an open source collaborative web development debugging tool specifically designed to help JavaScript and CSS folk test snippets of code, within some context, and debug the code collaboratively. What can JS Bin do? Write code and have it both save in real-time, but also render a full preview in real-time Help debug other people's JavaScript, HTML or CSS by sharing and editing urls CodeCast - where you share what you're typing in JS Bin in real-time Remote rendering - view the output of your JS Bin on any device on any platform, updating in real-time Processors, including: coffee-script, LESS, Markdown and Jade. Debug remote Ajax calls JS Bin - https://jsbin.com/ GitHub - https://github.com/jsbin/jsbin