Scan, repair, and regenerate WordPress thumbnails with missing-file detection, outdated-size checks, resumable processing, and clear local history.
Alternatives to Simple Image Sizes
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
Relevant replacements
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Thumbnail Managerv1.6.0
Regenerate WordPress thumbnails, control image sizes, and safely clean generated files with resumable, review-first jobs.
Reinvent Retina Imagesv1.0.2
Sharp retina images in one click: regenerate thumbnails, fix missing image sizes, turn off unneeded ones, make WebP/AVIF and free up space.
Custom Thumbnail Generator manages image sizes via an AJAX interface. It decouples sizes from themes, ensuring they persist and remain functional.
ART4ART Thumbnail Doctorv1.0.0
Regenerate thumbnails, identify which theme or plugin declares each size, and review old image sizes with dry-run, quarantine and restore.
Regenerate thumbnails selectively by upload date and search filters with full history calendar, performance throttle, and fail-safe recovery.
AJAX Thumbnail Rebuildv2.2.1
Rebuild your media library one image at a time, without script timeouts - and optimise, replace, or write WebP and AVIF copies of your images.
Revolutionary auto featured image generator with AI. Effortlessly create thumbnails, force regenerate thumbnails, and automate image workflows.
Regenerate image sizes for all, selected or single images, create only the missing sizes, and clean up leftover size files.