Title: Thumbnail Manager Author: YoOhw Studio Published: 5 Oktober 2025 Last modified: 29 Agustus 2026 --- Cari 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 Oleh [YoOhw Studio](https://profiles.wordpress.org/yoohw/) [Unduh](https://downloads.wordpress.org/plugin/thumbnail-manager.1.5.0.zip) * [Detail](https://id.wordpress.org/plugins/thumbnail-manager/#description) * [Ulasan](https://id.wordpress.org/plugins/thumbnail-manager/#reviews) * [Instalasi](https://id.wordpress.org/plugins/thumbnail-manager/#installation) * [Pengembangan](https://id.wordpress.org/plugins/thumbnail-manager/#developers) [Bantuan](https://wordpress.org/support/plugin/thumbnail-manager/) ## Deskripsi [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, bounded jobs. They continue in batches, survive a page reload or network interruption, and use scoped processing where the workflow supports it. #### 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. * Regenerate all media, current-year images, one uploads folder, or specific image attachments. * Review conservative keep recommendations with explicit evidence and confidence based on protected size policies, 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, not proof that a size is used or unused. Missing scan evidence leaves the current size setting unchanged. 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. Persistent settings, job history, audit/recovery rows, and derived media-reference data remain in the site’s database after deactivation or plugin deletion. Browser- local job tokens may also remain in the administrator’s browser. Review and remove retained data separately when required by the site’s privacy policy. ## Tangkapan Layar [[ [[ [[ [[ ## Instalasi 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. ## Tanya Jawab ### 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. Regenerate can process all media, current-year images, one uploads folder, or specific image attachments. Choose the narrowest useful scope before starting a large job. ### 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, in **Prune Files**. 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. ### What data remains after deactivation or plugin deletion? Deactivation clears Thumbnail Manager’s scheduled cleanup task but retains settings, job history, recovery evidence, and media-reference data. Deleting the plugin files intentionally retains the same database state and does not delete attachment metadata, uploads, generated thumbnails, or recovery files. This retained state may be reused after reinstall, subject to the plugin’s normal expiry, ownership, and authorization checks. Remove retained database data separately only if your site’s privacy and recovery requirements allow it. ## Ulasan ![](https://secure.gravatar.com/avatar/d59321d00f2e94a63f581772460d3cc46205da58d8da920acd197f109c0df524? s=60&d=retro&r=g) ### 󠀁[Good idea but fails](https://wordpress.org/support/topic/good-idea-but-fails/)󠁿 [kashmiri](https://profiles.wordpress.org/kashmiri/) 29 Agustus 2026 Spent several hours attempting to clean a Wordpress installation using this plugin. While I appreciate it’s free, and also appreciate its classic, uncluttered UI, I have to conclude that it doesn’t do what it’s supposed to. Primarily, it regenerates all registered thumbnal sizes, ignoring the selection on the Thumbnail Sizes tab. Delete thumbnails of disabled sizes likewise doesn’t work – it doesn’t find sizes that have been deselected (despite being 1000s of them in my Upload directory). While regenerating to a different format (WEBP/AVIF, a separate global setting in my Wordpress), it generates the required thumbnails as set, but fails to delete the corresponding JPG thumbnails of the same size – even though it promises to remove obsolete files. All in all, a good effort, but disappointing results. ![](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/) 18 Juni 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! [ Baca semua 2 ulasan ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/) ## Kontributor & Pengembang “Thumbnail Manager” adalah perangkat lunak open source. Berikut ini mereka yang sudah berkontribusi pada plugin ini. Kontributor * [ YoOhw Studio ](https://profiles.wordpress.org/yoohw/) [Terjemahkan “Thumbnail Manager” dalam bahasa Anda.](https://translate.wordpress.org/projects/wp-plugins/thumbnail-manager) ### Tertarik mengembangkan? [Lihat kode](https://plugins.trac.wordpress.org/browser/thumbnail-manager/), periksa [repositori SVN ](https://plugins.svn.wordpress.org/thumbnail-manager/), atau mendaftar ke [log pengembangan](https://plugins.trac.wordpress.org/log/thumbnail-manager/) melalui [RSS](https://plugins.trac.wordpress.org/log/thumbnail-manager/?limit=100&mode=stop_on_copy&format=rss). ## Log Perubahan #### 1.5.0 (Aug 29, 2026) * Improved regeneration reliability, including safer Force Regenerate recovery and original-source handling * Strengthened Prune safety with stricter ownership, source protection, path validation, and reviewed-manifest enforcement * Improved Recommendations with evidence-based confidence and conservative fail- safe handling * Improved large Media Library performance with persistent, bounded jobs and resumable processing * Hardened job locking, ownership, cancellation, expiry, and interrupted-work recovery * Added a clearer radio-card Scope picker for Regenerate while preserving targeted folder and attachment selection * Improved admin accessibility, compatibility checks, workflow feedback, and automated safety coverage See `changelog.txt` for the complete release history. ## Meta * Versi **1.5.0** * Diperbarui **8 jam yang lalu** * Instalasi Aktif **100+** * Versi WordPress ** 6.3 atau yang terbaru ** * Diuji hingga **7.0.4** * Versi PHP ** 7.4 atau yang terbaru ** * Bahasa * [English (US)](https://wordpress.org/plugins/thumbnail-manager/) * Tag * [cleanup](https://id.wordpress.org/plugins/tags/cleanup/)[image sizes](https://id.wordpress.org/plugins/tags/image-sizes/) [media library](https://id.wordpress.org/plugins/tags/media-library/)[regenerate thumbnails](https://id.wordpress.org/plugins/tags/regenerate-thumbnails/) [thumbnails](https://id.wordpress.org/plugins/tags/thumbnails/) * [Tampilan lanjut](https://id.wordpress.org/plugins/thumbnail-manager/advanced/) ## Rating 3.5 dari 5 bintang. * [ 1 ulasan 5-bintang ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=5) * [ 0 ulasan 4-bintang ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=4) * [ 0 ulasan 3-bintang ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=3) * [ 1 ulasan 2-bintang ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=2) * [ 0 ulasan 1-bintang ](https://wordpress.org/support/plugin/thumbnail-manager/reviews/?filter=1) [Your review](https://wordpress.org/support/plugin/thumbnail-manager/reviews/#new-post) [Lihat semua ulasan](https://wordpress.org/support/plugin/thumbnail-manager/reviews/) ## Kontributor * [ YoOhw Studio ](https://profiles.wordpress.org/yoohw/) ## Bantuan Masalah yang diselesaikan dua bulan terakhir: 1 dari 1 [Lihat forum bantuan](https://wordpress.org/support/plugin/thumbnail-manager/)