jQuery QR Code
qrcode generation standalone (doesn't depend on external services)
Svg.js
A lightweight library for manipulating and animating SVG
Processing.js
A port of the Processing visualization language to JavaScript.
Snap.svg
The JavaScript library for modern SVG graphics.
Jcrop
Jcrop (official) - Image Cropping Plugin for jQuery
jQuery Focuspoint
jQuery plugin for 'responsive cropping'. Dynamically crop images to fill available space without cutting out the image's subject. Great for full-screen images.
Bonsai
BonsaiJS is a graphics library and renderer
Konva
Konva.js is an HTML5 Canvas JavaScript framework that extends the 2d context by enabling canvas interactivity for desktop and mobile applications.
Croppie
A Javascript Image Cropper
Clmtrackr
Javascript library for precise tracking of facial features via Constrained Local Models
P2.js
JavaScript 2D physics library
Caman Js
Pure Javascript HTML5 (Ca)nvas (Man)ipulation
Proton
A particle engine for html5
Svgo
SVGO is a Nodejs-based tool for optimizing SVG vector graphics files.
Graphicsjs
A lightweight JavaScript graphics library with the intuitive API, based on SVG/VML technology.
Obelisk.js
JavaScript Engine for Building Isometric Pixel Element with HTML5 Canvas
Color
JavaScript color conversion and manipulation library