Dagre
Directed graph renderer for javascript
Paper.js
The Swiss Army Knife of Vector Graphics Scripting – Scriptographer ported to JavaScript and the browser, using HTML5 Canvas. Created by @juerglehni & @jonathanpuckey
Pixastic
JavaScript Image Processing Library
Color
JavaScript color conversion and manipulation library
Konva
Konva.js is an HTML5 Canvas JavaScript framework that extends the 2d context by enabling canvas interactivity for desktop and mobile applications.
Proton
A particle engine for html5
P2.js
JavaScript 2D physics library
Caman Js
Pure Javascript HTML5 (Ca)nvas (Man)ipulation
Js Barcode
Barcode generation library that works in both the browser and on Node.js http://lindell.me/JsBarcode
Two.js
A renderer agnostic two-dimensional drawing api for the web.
Image Mapster
jQuery plugin for enhancing HTML Image maps
Canvg
Javascript SVG parser and renderer on Canvas
Gif.js
JavaScript GIF encoding library
Chartist Js
Simple responsive charts
Croppie
A Javascript Image Cropper
Maker.js
📐⚙ Library for creating 2D vector drawings for CNC and laser cutter machines.
FloraJS
FloraJS is a JavaScript framework for simulating natural systems in a web browser.