List of Free code Image Background
AssetGraph plugin for creating sprites from background images.
Measure relative sizes on background image.
Automatically switch to a darker or a lighter version of an element depending on the brightness of images behind it.
background images outline remove
bookmarklets to outline or remove CSS background images for accessibility testing.
"flatten" SVGs. Fix SVGs in background images in webkit.
grunt css absolute image url
for case you may like to combo css files, and thus css background image write in relative path will point to a wrong path, this task is aim to convert relative path to absolute path.
jQuery Custom Selectbox
SelectBox replacement using jQuery. Hides the selectbox and replaces it with an accessible js version. All you need to do is style it. Also supports background images on individual options.
Fillmore is a jQuery plugin that allows you to add a dynamically resized background image to any page, or any given element. The image will stretch to fit the page / element, and will automatically resize as the window size changes.
jquery image zoom
Working on a recent project I needed to be able to make a 'zoom' style effect. The easiest way I could think of to do this was a simple + and zoom bar (just like google maps) over a background image.
A jQuery plugin that pulls images or videos from a predefined collection and uses them as the web page background.