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.
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.
Snap.svg
The JavaScript library for modern SVG graphics.
Jcrop
Jcrop (official) - Image Cropping Plugin for jQuery
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