Flot

Flot is a pure JavaScript plotting library for jQuery, with a focus on simple usage, attractive looks and interactive features.

jCanvas

jCanvas brings jQuery’s powerful syntax and capability to the HTML5 canvas. Quickly create canvas-based apps that can utilize layers, animations, events, and much more. jCanvas works on all modern browsers and platforms, including iOS and Android.

jQuery Sparkline

Easily generate small, inline sparkline charts directly in the browser

wPaint jQuery Paint Plugin

A jQuery paint plugin for a simple drawing surface that you can easily pop into your pages, similar to the basic windows paint program.

wScratchPad jQuery Plugin

A jQuery plugin to mimic a scratch card or pad behaviour. Allowing you to scratch off an overlay as either a color or image.

jQuery seeThru

HTML5 video with alpha channel transparencies

Qoopido Shrinkimage

jQuery plugin to load and process compressed versions of alpha transparent PNG images saving approx. 60-80% in filesize. The plugin requires minor changes to .htaccess and some PHP to compress the original images. In addition Q.js (https://github.com/kriskowal/q) has to be included before this plugin!

jQuery Eraser

Transforms an image into an erasable canvas (with mouse and touch)

jQuery canvasResize

jQuery plugin for client side image resizing. (HTML5 Canvas)