Benjamin Bode

WordPress automatically creates multiple copies of every image you upload in different sizes (thumbnail, medium, large, and more). Over time, this wastes a significant amount of disk space, especially on large sites with thousands of images.
Imadero scans your media library, finds all auto-generated thumbnails, and removes them safely. It also updates all references in your posts, pages, and metadata to use the original image instead.
<h4>Features</h4>
<ul>
<li>Scan your media library to find all auto-generated thumbnails</li>
<li>Preview how many files and how much disk space can be freed before deleting anything</li>
<li>Delete all thumbnails in batches (safe for large sites)</li>
<li>Rewrite all database references (posts, meta, options) to use the original image</li>
<li>Prevent WordPress from generating thumbnails on future uploads</li>
<li>Handles serialized data safely (works with Elementor, Divi, WPBakery, and other page builders)</li>
<li>Handles Gutenberg block attributes (sizeSlug, CSS classes)</li>
<li>Removes WordPress -scaled images and restores the original</li>
<li>Batch processing prevents timeouts on large installations</li>
<li>Works with WooCommerce product images</li>
</ul>
<h4>How It Works</h4>
<ol>
<li>Go to Tools > Imadero in your WordPress admin</li>
<li>Click Start Scan to find all auto-generated thumbnails</li>
<li>Review the results: number of thumbnails and disk space used</li>
<li>Click Delete Thumbnails to remove them and update database references</li>
<li>Optionally enable Disable automatic thumbnail generation to prevent future thumbnails</li>
</ol>
<h4>Important Notes</h4>
<ul>
<li>Always create a backup before running the cleanup</li>
<li>The deletion process cannot be undone</li>
<li>WordPress will automatically fall back to the original image where thumbnails were used</li>
<li>The plugin works per site on Multisite installations</li>
</ul>

Imadero

Remove auto-generated image thumbnails to free up disk space and keep your media library clean.

Shane Bishop

Pedro Elsner

Force Regenerate Thumbnails allows you to delete all old images sizes and REALLY regenerate the thumbnails for your uploads.
Regenerate all thumbnails from the Tools admin menu. Regenerate batches of images via the Media Library list mode. Select the images to regenerate and then use the Bulk Actions drop-down menu to Force Regenerate Thumbnails. Use attachment actions to regenerate thumbnails for a single image.
Several filters exist for advanced usage. See more via <a href="https://gist.github.com/nosilver4u/eb858df10521aece2044a3a15ccdd17b" rel="nofollow ugc">this gist</a>.
You may report security issues through our Patchstack Vulnerability Disclosure Program. The Patchstack team helps validate, triage and handle any security vulnerabilities. <a href="https://patchstack.com/database/vdp/force-regenerate-thumbnails" rel="nofollow ugc">Report a security vulnerability.</a>

Force Regenerate Thumbnails

Delete and REALLY force thumbnail regeneration.

Imadero vs Force Regenerate Thumbnails