Before / After Shortcode

Compare two images in WordPress with a lightweight, keyboard-accessible slider.

What it does

Adds a lightweight before/after image comparison through a shortcode. Works with mouse, touch and keyboard.

[before_after before="BEFORE-URL" after="AFTER-URL"]

Optional attributes: start, radius, animate, class, alt, label.

In WordPress, open Plugins → Add New → Upload Plugin, select the ZIP and activate it.

Requires WordPress and two images accessible by URL. Insert the shortcode in a page; it does not modify the original images.