Sound Manager 2
A JavaScript Sound API supporting MP3, MPEG4 and HTML5 audio + (experimental) RTMP, providing reliable cross-browser/platform audio control in as little as 10 KB. BSD licensed.
Canvg
Javascript SVG parser and renderer on Canvas
Big.js
A small, fast JavaScript library for arbitrary-precision decimal arithmetic.
Winjs
WinJS project by Microsoft Open Technologies
Derby
MVC framework making it easy to write realtime, collaborative applications that run in both Node.js and browsers
jQuery Lazyload
jQuery plugin for lazy loading images
Egret Core
Egret is a brand new open mobile game and application engine which allows you to quickly build mobile games and apps on Android,iOS and Windows.
Notie.js
A clean and simple notification plugin (alert/growl style) for javascript, with no dependencies.
Color
JavaScript color conversion and manipulation library
Autosize
jQuery plugin for dynamic textarea sizing
Benchmark.js
A benchmarking library that works on nearly all JavaScript platforms, supports high-resolution timers, and returns statistically significant results. As used on jsPerf.com.
jQuery.terminal
jQuery Terminal Emulator - JavaScript library for creating web-based terminals with custom commands
Tiny Color
Fast, small color manipulation and conversion for JavaScript
jQuery Knob
Nice, downward compatible, touchable, jQuery dial
Sound JS
A Javascript library for working with Audio. Features a simple interface as the front end to multiple audio APIs via a plugin model. Currently supports HTML5 Audio & Flash.
Aleph.js
The Full-stack Framework in Deno.
Liquidfun
2D physics engine for games