Shadowbox is an online media vieiwing application similar to Lightbox and Thickbox but with more functionality. Supports all types of media.
As of April 2026, Shadowbox JS is a WordPress JS plugin with 2.0K+ active installations and a 4.6/5 rating from 9 reviews. It has been downloaded 533K+ times in total. Requires WordPress 3.3+ and PHP false+. Available on WordPress.org since 2008. Last updated 8 years ago — may have compatibility concerns. Download volume is stable this week. Top alternative: Clear Cache for Me.
Shadowbox is an online media viewing application that supports all of the web’s most popular media publishing formats. Shadowbox is written entirely in JavaScript and CSS and is highly customizable. Using Shadowbox, website authors can display a wide assortment of media in all major browsers without navigating users away from the linking page.
This plugin uses Shadowbox written by Michael J. I. Jackson.
Javascript libraries supported are: None, YUI, Prototype, jQuery and MooTools. Prototype and jQuery are used from the Javascript libraries included with WordPress, YUI is loaded from Yahoo APIs and Mootools is loaded from Google APIs.
This plugin can also be used as a drop in lightbox replacement, without requiring you to edit posts already using lightbox.
By default this plugin will…
Love this and use on all my sites
It appears that the plugin author has abandoned supporting this plugin, it hasn’t been updated in four years.
The plugin is now creating php errors with that latest few versions of WordPress.
This was a good plugin, it’s a pity that it’s no longer supported.
I started to use shadowbox js years ago, first in my plain html and php websites and now with WordPress in its plugin version. I’m sad the creators decided to stop supporting and updating it but I understand why they decided to. This is by far the best lightbox-type plugin I used and I tested almost every single of them. I’m still using now in my clients wordpress websites (4.3) and still works like charm. Thanks!
Beautifies the sample images!
No configuration needed, works nicely out of the box! Best plugin for lightbox out there.
| WordPress | 3.3+ requiredTested up to 3.4.2 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.