Description
Thumbnail Remover and Size Manager 2.0 is a safer and more complete media-maintenance workflow for WordPress.
Instead of deleting thumbnails blindly, the plugin now helps you:
- Preview cleanup results before removing files
- Move thumbnails to plugin Trash instead of deleting permanently
- Restore trashed thumbnails later if needed
- Process large libraries in batches with visible progress
- Detect orphan thumbnails left behind on disk
- Detect probably unused media items across post content, featured images, and common builder data
- Regenerate missing image sizes in batches
- Review per-size analytics including file counts, storage usage, missing sizes, and orphan counts
- Disable selected image sizes for future uploads
- Create zip backups for all uploads or a specific year/month folder
This release is built for site owners, developers, agencies, and anyone trying to reduce thumbnail bloat without risking accidental data loss.
Features
- Dry run / preview before cleanup
- Trash and Restore workflow for safer deletion
- Batch processing with real progress for scan, cleanup, and regeneration
- Unused media detection
- Orphan thumbnail detection
- Regenerate missing sizes
- Per-size analytics dashboard
- Image size disable controls for future uploads
- Media backup export to zip
Screenshots
Library analysis with per-size analytics and unused media results 
Dry run preview before moving thumbnails to Trash 
Trash and Restore workflow
Installation
- Upload the plugin files to the
/wp-content/plugins/thumbnail-removerdirectory, or install the plugin through the WordPress plugins screen directly. - Activate the plugin through the
Pluginsscreen in WordPress. - Go to
Tools > Thumbnail Manager. - Run a full analysis before your first cleanup so you can review thumbnail usage, orphan counts, and unused media signals.
FAQ
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Does the plugin permanently delete thumbnails?
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No. Version 2 moves matching thumbnail files into plugin Trash first so they can be restored later.
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What does Preview do?
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Preview performs a dry run and shows how many files match your current selection, which sizes are involved, how much space can be recovered, and how many orphan thumbnails were found.
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What are orphan thumbnails?
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Orphan thumbnails are files such as
image-300x300.jpgthat still exist on disk but are no longer tracked in WordPress attachment metadata. -
How does unused media detection work?
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The plugin scans image attachments and checks for usage in featured images, parent attachments, post content, and stored builder/meta content. The results are best treated as “probably unused” so you can review them manually.
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Can I regenerate missing sizes after enabling a size again?
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Yes. Use the
Regenerate Missing Sizessection to rebuild missing image sizes in batches. -
Can I back up my files before cleanup?
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Yes. You can create a zip backup for all uploads or for a selected year/month folder.
Reviews
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Contributors & Developers
“Thumbnail Remover and Size Manager” is open source software. The following people have contributed to this plugin.
Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
2.0.0
- Added dry-run preview before cleanup
- Added Trash and Restore workflow for thumbnail removal
- Added batch processing with progress for analysis, cleanup, and regeneration
- Added orphan thumbnail detection
- Added probably unused media detection
- Added missing-size regeneration workflow
- Added per-size analytics dashboard
- Refreshed admin UI for the new v2 workflow
- Updated plugin description and documentation
1.1.5
- Fixed a fatal error when disabling thumbnail sizes on PHP 8.x
- Hardened settings and AJAX input handling for string-based values
- Updated compatibility metadata for the latest WordPress release
1.1.4
- Added new feature: Media file backup functionality
- Improved user interface for backup options
- Bug fixes and performance improvements