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.
Barcode generation library that works in both the browser and on Node.js http://lindell.me/JsBarcode
A workshopper for GLSL shaders and graphics programming
The sequel to shader-school: Learn the WebGL API
jQuery plugin for 'responsive cropping'. Dynamically crop images to fill available space without cutting out the image's subject. Great for full-screen images.
A lightweight library for manipulating and animating SVG
A node.js-style module system for GLSL!
A jQuery plugin for panning and zooming elements using CSS3.
A lightweight WebGL library
SVGO is a Nodejs-based tool for optimizing SVG vector graphics files.
JQuery lightSlider is a lightweight responsive Content slider with carousel thumbnails navigation
WhitestormJS physics + rendering of 3D