Raphaël - Vector Graphics using JavaScript

Raphaël is a small JavaScript library that should simplify your work with vector graphics on the web. If you want to create your own specific chart or image crop and rotate widget, for example, you can achieve it simply and easily with this library.

Using the library you can easily create Gauges or any other JavaScript Visualization you like.

If you are a developer you will be happy to know its under MIT license and basically Free!

Sample using Raphael:

Visualize Tweets Using Raphael

More Info about Raphaël 

The State of JavaScript

Brendan Eich reviews the history of JavaScript, then introduces and demonstrates some of the new features coming in ES6

Click here to watch!