Siema
Siema - Lightweight and simple carousel in pure JavaScript
Joint
JavaScript diagramming library
Isomer
Simple isometric graphics library for HTML5 canvas
jQuery Backstretch
Backstretch is a simple jQuery plugin that allows you to add a dynamically-resized, slideshow-capable background image to any page or element. The image will stretch to fit the page/element, and will automatically resize as the window/element size changes.
Imager.js
Responsive images while we wait for srcset to finish cooking
Ejecta
A Fast, Open Source JavaScript, Canvas & Audio Implementation for iOS
Croppie
A Javascript Image Cropper
Svg.js
A lightweight library for manipulating and animating SVG
Cannon.js
A lightweight 3D physics engine written in JavaScript.
Jimp
An image processing library written entirely in JavaScript for Node, with zero external or native dependencies.
Flex Slider
An awesome, fully responsive jQuery slider plugin
Raphael
JavaScript Vector Library
Bonsai
BonsaiJS is a graphics library and renderer
Baraja
Baraja is a jQuery plugin that allows to move elements in a card-like fashion and spread them like one would spread a deck of cards on a table.
Sylvester
Vector, matrix and geometry math 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.