Extension for serving Hi-Res images on desktop / mobile
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Lightweight jQuery extension for serving high-resolution images on desktop and mobile devices. Compatible with @2x, @3x, and @4x image varients, using Apple’s recommended naming convention for high-resolution graphics.


Include the latest version of jQuery and jQuery.imgx.js in the <head> of your HTML document:

<script src="jQuery.min.js"></script>  
<script src="jQuery.imgx.js"></script>

How to Use

Reference the imgx() method and include @2x, @3x, or @4x image varients in the same directory as the original source. The script will automatically load the appropriate image(s) based on the display’s detected pixel density. See the live demo: code.nath.co/imgx


$(function() {  

    // All Images
    // Class Only



img {
    display: block;
    height: auto;
    max-width: 100%;

Release Notes

jQuery.imgx 1.0
– Initial Release
jQuery.imgx 1.0.1
– Added WebP image format, thanks @jarjan
– Modified structure for performance, thanks @elislade
jQuery.imgx 1.0.2
– Added screen media type
– Added support for @4x images
– Regex is now case-insensitive, thanks @azmenak


If you discover any issues or have questions regarding usage, please send a message to code@nath.co or find me on GitHub @nathco.