Derby
MVC framework making it easy to write realtime, collaborative applications that run in both Node.js and browsers
Big.js
A small, fast JavaScript library for arbitrary-precision decimal arithmetic.
Pts
A library for visualization and creative-coding
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.
Notie.js
A clean and simple notification plugin (alert/growl style) for javascript, with no dependencies.
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.
Color
JavaScript color conversion and manipulation library
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
Hashids.js
A small JavaScript class to generate YouTube-like hashids from one or many numbers. This is a client-side version of Node.js version.
Zip.js
JavaScript library to zip and unzip files
TweenJs
A simple but powerful tweening / animation library for Javascript. Part of the CreateJS suite of libraries.