CamanJS is an HTML canvas image manipulation JavaScript library with a very easy to use interface and a webworkers backend.

CamanJS is not a canvas drawing library, it’s main focus is manipulating images, not drawing new content.

It provides much of the basic functionality you would find in something like Photoshop (image contrast, brightness, levels, saturation, etc.)

This Javascript image manipulation library doesn’t work in any version of Internet Explorer because it uses Webworkers.