Imadero

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.

Features

• Scan your media library to find all auto-generated thumbnails

• Preview how many files and how much disk space can be freed before deleting anything

• Delete all thumbnails in batches (safe for large sites)

• Rewrite all database references (posts, meta, options) to use the original image

• Prevent WordPress from generating thumbnails on future uploads

• Handles serialized data safely (works with Elementor, Divi, WPBakery, and other page builders)

• Handles Gutenberg block attributes (sizeSlug, CSS classes)

• Removes WordPress -scaled images and restores the original

• Batch processing prevents timeouts on large installations

• Works with WooCommerce product images

How It Works

• Go to Tools > Imadero in your WordPress admin

• Click Start Scan to find all auto-generated thumbnails

• Review the results: number of thumbnails and disk space used

• Click Delete Thumbnails to remove them and update database references

• Optionally enable Disable automatic thumbnail generation to prevent future thumbnails

Important Notes

• Always create a backup before running the cleanup

• The deletion process cannot be undone

• WordPress will automatically fall back to the original image where thumbnails were used

• The plugin works per site on Multisite installations