A jQuery plugin to dynamically add noise onto an element.
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jQuery-Noise Plugin

Written By the Forrst Users @dhotson & @ajcates; contributor: Alan Hogan

This plugin will insert a semi transparent noise image into your elements background-images. The image is generated using canvas then exported out with toDataURL().


There is a demo on jsFiddle here.

How to use:

Include the script and jQuery like normal: <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> <script type="text/javascript" src="noisy.js"></script>

Then after the dom is ready you can call just noisy() or pass it some parameters:

$("body").noisy({opacity : .1});


  • opacity : Takes a number between .0 and 1 and draws out the noise at that opacity.
  • color : Used for tinting the noise a certain color. Takes a string formatted like "rgb(255,255,255)" or a function that returns a string like that. By default this returns the items current background-color.
  • monochromatic : Whether the generated noise should be monochromatic (true) or not. If false, the red, green, and blue channels are randomized independently. Default: false.
  • amount : A number usually around 70 that adds some brightness to the colors so they aren't all dark.
  • width : How wide you want the background-image tile set at. If your noise looks to uniform make this number bigger.

License: MIT (see the License.md file for more info)