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This step-by-step guide will show you how to add a free Before/After image slider to your WordPress site using the Unlimited Elements Blocks Library. The Before/After block is easy to use, fully customizable, and works directly inside the native WordPress block editor (Gutenberg) — no coding required.
Click Download, then in your WordPress dashboard, go to Plugins → Add New → Upload Plugin and upload the ZIP file.
Click Install Now and then Activate to enable the plugin.
From your WordPress dashboard, go to Unlimited Elements → Blocks Library.
This is where all available blocks are listed and managed.
Use the search bar at the top right and type “Before After”.
The Before After block will appear in the results list.
Hover over the Before After block and click Install.
This adds the block to your available options in the editor.
Open any page or post using the WordPress block editor.
Click the (+) Add Block button, search for “Before After”, and insert it into the page.
Once added, select the Before/After block and use the settings panel on the right. Upload your before and after images, adjust the slider orientation and starting position, and customize labels, handle style, and animations to match your site’s design.
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