Flex Slider
An awesome, fully responsive jQuery slider plugin
Colorbox
A light-weight, customizable lightbox plugin for jQuery
Canvg
Javascript SVG parser and renderer on Canvas
Open Jscad.org
OpenSCAD + JavaScript = OpenJSCAD, edit locally or remote online, preview in browser direct via WebGL.
Color
JavaScript color conversion and manipulation library
Croppie
A Javascript Image Cropper
Liquidfun
2D physics engine for games
jQuery Backstretch
Backstretch is a simple jQuery plugin that allows you to add a dynamically-resized, slideshow-capable background image to any page or element. The image will stretch to fit the page/element, and will automatically resize as the window/element size changes.
Processing.js
A port of the Processing visualization language to JavaScript.
Kinetic Js
KineticJS is an HTML5 Canvas JavaScript library that extends the 2D context by enabling canvas interactivity for desktop and mobile applications.
Cannon.js
A lightweight 3D physics engine written in JavaScript.
Siema
Siema - Lightweight and simple carousel in pure JavaScript
Twgl.js
A Tiny WebGL helper Library
Shader School
A workshopper for GLSL shaders and graphics programming
Jcrop
Jcrop (official) - Image Cropping Plugin for jQuery
jQuery QR Code
qrcode generation standalone (doesn't depend on external services)
Claygl
A WebGL graphic library for building scalable Web3D applications