Title: Thumbnail Manager
Author: YoOhw Studio
Published: <strong>Oktubre 5, 2025</strong>
Last modified: Agosto 1, 2026

---

Maghanap ng mga plugin

![](https://ps.w.org/thumbnail-manager/assets/banner-772x250.png?rev=3517019)

![](https://ps.w.org/thumbnail-manager/assets/icon-256x256.png?rev=3517019)

# Thumbnail Manager

 Ni [YoOhw Studio](https://profiles.wordpress.org/yoohw/)

[I-download](https://downloads.wordpress.org/plugin/thumbnail-manager.1.4.0.zip)

 * [Mga Detalye](https://tl.wordpress.org/plugins/thumbnail-manager/#description)
 * [Mga Review](https://tl.wordpress.org/plugins/thumbnail-manager/#reviews)
 *  [Pag-install](https://tl.wordpress.org/plugins/thumbnail-manager/#installation)
 * [Development](https://tl.wordpress.org/plugins/thumbnail-manager/#developers)

 [Suporta](https://wordpress.org/support/plugin/thumbnail-manager/)

## Deskripsyon

[Product page](https://yoohw.com/product/thumbnail-manager/) | [Documentation](https://docs.yoohw.com/category/thumbnail-manager/)
| [Support](https://workspace.yoohw.com/)

Thumbnail Manager helps regenerate WordPress image sizes, prevent future thumbnail
bloat, and review generated files before cleanup. Use it after changing themes or
WooCommerce image settings, migrating a site, or finding obsolete sizes in a long-
running Media Library.

Large operations run as persistent, cursor-based jobs. They continue in bounded 
batches, survive a page reload or network interruption, and can be limited to selected
upload years or months.

#### Thumbnail control and regeneration

 * Review every registered image size and decide which sizes WordPress should generate
   for future uploads.
 * Generate only missing sizes or force-regenerate selected image attachments.
 * Process all images, selected attachments, the current year, or selected upload
   folders.
 * Review recommendations based on protected WordPress sizes, WooCommerce-related
   sizes, attachment metadata, and common content references.
 * Resume or cancel persistent jobs and review recent job results and per-item errors.

#### Review-first cleanup

Prune Files separates discovery from deletion:

 1. Choose the image sizes to keep.
 2. Scan all uploads or selected year and month folders.
 3. Review the immutable, hashed manifest and estimated storage total.
 4. Explicitly approve the reviewed manifest.
 5. Delete only those approved generated files in resumable batches.

Original full-size uploads are protected. Candidate paths are validated inside the
WordPress uploads directory, and attachment metadata is updated when a generated
size is removed.

Metadata-backed legacy sizes can be included in the review. Disk-only files that
match a `-WIDTHxHEIGHT` pattern but cannot be mapped reliably to attachment metadata
are reported and skipped by default.

#### Scope

Thumbnail Manager controls image-size generation, regeneration, and cleanup. It 
does not compress images, convert them to WebP or AVIF, configure a CDN, offload
media, or unregister a size from the theme or plugin that originally registered 
it.

Recommendations are an informed starting point. Verify the sizes used by the active
theme, plugins, WooCommerce templates, and custom code before disabling generation
or approving deletion.

### Privacy

Thumbnail Manager does not collect, store, or transmit personal data to external
services. Thumbnail analysis, regeneration, recommendations, and cleanup run locally
on the WordPress site.

## Mga Screenshot

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## Pag-install

 1. Install the plugin through the WordPress Plugins screen, or upload it to `/wp-content/
    plugins/thumbnail-manager/`.
 2. Activate Thumbnail Manager.
 3. Go to **Tools > Thumbnail Manager**.
 4. Run Recommendations and review the result for your theme and plugins.
 5. Configure future Thumbnail Sizes before regenerating or cleaning files.
 6. Back up the uploads directory before approving cleanup on a production site.

## FAQ

### Can I regenerate thumbnails after changing image sizes?

Yes. **Only Missing** creates absent sub-sizes. **Force Regenerate** rebuilds the
selected attachments more comprehensively from an available original image source.

### Can it clean unused generated thumbnails?

Yes. Prune Files first builds a manifest for review. Nothing is deleted until the
scan finishes and an administrator explicitly approves that manifest.

### Will it delete original images?

No. Original full-size uploads are protected. Cleanup candidates must also pass 
path and attachment checks.

### Can I scan several upload folders?

Yes. Search for and select multiple years or months. Selecting an entire year automatically
covers its month folders.

### Is it suitable for a large Media Library?

Yes. Recommendations, regeneration, scanning, manifest creation, and deletion use
persistent jobs and bounded batches that can resume after interruption.

### What happens if I close the page during a job?

The job state remains in the database. Reload the admin page to resume it. Cancelling
stops future batches while retaining an audit record.

### Does orphan discovery delete disk-only files?

No. Unmapped disk-only filename matches are reported and skipped by default. Only
approved, validated manifest items are deleted.

### Is it safe for WooCommerce sites?

The plugin recognizes WooCommerce-related sizes in Recommendations, but storefront
requirements vary. Verify the sizes used by your store before disabling or pruning
them.

### Does disabling a size unregister it from a theme or plugin?

No. It changes which registered sizes WordPress generates for future uploads. The
original registration remains in place.

## Mga Review

![](https://secure.gravatar.com/avatar/9e54456b641c36d5fe82513f45785173ed9f9c0056a2e2f0d532232bfedb725f?
s=60&d=retro&r=g)

### 󠀁[Yes this works!](https://wordpress.org/support/topic/yes-this-works/)󠁿

 [richardjb62](https://profiles.wordpress.org/richardjb62/) Hunyo 18, 2026

I used both the ‘Prune’ and ‘Regenerate’ features as part of a process I had to 
run to reduce the size of my uploads folder. By deleting thumbnails I was able to
download just the original image files, batch resize/optimise them, put them back
on the server and regenerate the thumbnails. Worked exactly as expected. Most of
the free (and premium?) image optimising plugins actually fill up your server with
more files so this was exactly what I needed. Thanks!

 [ Basahin lahat ng 1 review ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/)

## Mga Contributor at Developer

Ang “Thumbnail Manager” ay open source software. Ang mga sumusunod na tao ay nag-
ambag sa plugin na ito.

Mga Contributor

 *   [ YoOhw Studio ](https://profiles.wordpress.org/yoohw/)

[Isalin ang “Thumbnail Manager” sa iyong wika.](https://translate.wordpress.org/projects/wp-plugins/thumbnail-manager)

### Interesado sa development?

[Tingnan ang code](https://plugins.trac.wordpress.org/browser/thumbnail-manager/),
i-check ang [SVN repository](https://plugins.svn.wordpress.org/thumbnail-manager/),
o mag-subscribe sa [development log](https://plugins.trac.wordpress.org/log/thumbnail-manager/)
sa pamamagitan ng [RSS](https://plugins.trac.wordpress.org/log/thumbnail-manager/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.4.0 (Jul 17, 2026)

 * Added persistent jobs with ownership, expiry, cancellation, locking, resume, 
   and per-item errors.
 * Split cleanup into scanning, immutable manifest review, explicit approval, and
   resumable deletion.
 * Added searchable multi-folder selection and limited scans to selected upload 
   folders.
 * Improved force regeneration, batched Recommendations, admin responsiveness, and
   automated release coverage.

See `changelog.txt` for the complete release history.

## Meta

 *  Bersyon **1.4.0**
 *  Huling na-update **4 linggo ang nakalipas**
 *  Mga aktibong installation **100+**
 *  Bersyon ng WordPress ** 6.3 o mas bago **
 *  Sinubukan hanggang **7.0.4**
 *  Bersyon ng PHP ** 7.4 o mas bago **
 *  Wika
 * [English (US)](https://wordpress.org/plugins/thumbnail-manager/)
 * Mga Tag
 * [cleanup](https://tl.wordpress.org/plugins/tags/cleanup/)[image sizes](https://tl.wordpress.org/plugins/tags/image-sizes/)
   [media library](https://tl.wordpress.org/plugins/tags/media-library/)[regenerate thumbnails](https://tl.wordpress.org/plugins/tags/regenerate-thumbnails/)
   [thumbnails](https://tl.wordpress.org/plugins/tags/thumbnails/)
 *  [Advanced View](https://tl.wordpress.org/plugins/thumbnail-manager/advanced/)

## Mga Rating

 5 out of 5 stars.

 *  [  1 5-star review     ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=5)
 *  [  0 4-star reviews     ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=4)
 *  [  0 3-star reviews     ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=3)
 *  [  0 2-star reviews     ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=2)
 *  [  0 1-star reviews     ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=1)

[Ang iyong review](https://wordpress.org/support/plugin/thumbnail-manager/reviews/#new-post)

[Tingnan lahat ng mga review](https://wordpress.org/support/plugin/thumbnail-manager/reviews/)

## Mga Contributor

 *   [ YoOhw Studio ](https://profiles.wordpress.org/yoohw/)

## Suporta

Mga isyu na nalutas sa nakalipas na dalawang buwan:

     1 sa 1

 [Tingnan ang support forum](https://wordpress.org/support/plugin/thumbnail-manager/)