Phaser is a light-weight 2D game framework for making HTML5 games for desktop and mobile browsers
Making AJAX as easy as anchor tags
Featherlight is a very lightweight jQuery lightbox plugin. It's simple yet flexible and easy to use. Featherlight has minimal css and uses no inline styles, everything is name-spaced, it's completely customizable via config object and offers image, ajax and iframe support out of the box. Featherlights small footprint weights about 4kB – in total.
A state controller with its own debugger