Maker.js
📐⚙ Library for creating 2D vector drawings for CNC and laser cutter machines.
Chartist Js
Simple responsive charts
Konva
Konva.js is an HTML5 Canvas JavaScript framework that extends the 2d context by enabling canvas interactivity for desktop and mobile applications.
Gif.js
JavaScript GIF encoding library
Svgo
SVGO is a Nodejs-based tool for optimizing SVG vector graphics files.
Obelisk.js
JavaScript Engine for Building Isometric Pixel Element with HTML5 Canvas
Mapmap.js
A data-driven API for interactive thematic maps
Js Barcode
Barcode generation library that works in both the browser and on Node.js http://lindell.me/JsBarcode
Go Js
All GoJS samples, extensions, and documentation
Fabric.js
Javascript Canvas Library, SVG-to-Canvas (and canvas-to-SVG) Parser
Ocanvas
JavaScript library for object-based canvas drawing.
Soc.js
An easier way to create social icons
W Paint
jQuery Paint Plugin
Processing.js
A port of the Processing visualization language to JavaScript.
Color
JavaScript color conversion and manipulation library
jQuery QR Code
qrcode generation standalone (doesn't depend on external services)
P2.js
JavaScript 2D physics library