Barcode generation library that works in both the browser and on Node.js http://lindell.me/JsBarcode
The Responsive Slider with Advanced CSS3 Transitions
qrcode generation standalone (doesn't depend on external services)
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 simple library to view large images up close using simple mouse interaction, and the full screen.
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 very lightweight jQuery plugin to lazy load images
JQuery lightSlider is a lightweight responsive Content slider with carousel thumbnails navigation
Simple isometric graphics library for HTML5 canvas
A workshopper for GLSL shaders and graphics programming