Easystar.js
An asynchronous A* pathfinding API written in Javascript.
FloraJS
FloraJS is a JavaScript framework for simulating natural systems in a web browser.
Punycode.js
A robust Punycode converter that fully complies to RFC 3492 and RFC 5891, and works on nearly all JavaScript platforms.
Fuse
Lightweight fuzzy-search, in JavaScript
Instafeed.js
A simple Instagram javascript plugin
When
A solid, fast Promises/A+ and when() implementation, plus other async goodies.
Livestamp.js
A simple, unobtrusive jQuery plugin that provides auto-updating timeago text to your timestamped HTML elements using Moment.js.
Inputex
A javascript framework for YUI to build fields and forms.
Slides
Slides is a crazy simple slideshow plugin for jQuery. With features like looping, auto play, fade or slide transition effects, crossfading, image preloading, and auto generated pagination. With Slides you’ll never see multiple slides fly by. Slides elegantly just slides from one slide to the next. Awesome.
Teoria
A JavaScript music theory framework.
Lazy.js
Like underscore.js, but lazier
Riloadr
Riloadr - A cross-browser framework-independent responsive images loader written in Javascript.
Lazy Line Painter
A jQuery plugin for SVG path animation
Shifty
A teeny tiny tweening engine in JavaScript. That's all it does.
Keydrown
A JavaScript key state handler for web apps
Img Liquid
jQuery plugin to resize images to fit in a container.
Hex Rgb Conversion
181 byte two way conversion micro-library for Hexadecimal & RGB colors