Title: Thumbnail Manager Author: YoOhw Studio Published: 2025 年 10 月 5 日 Last modified: 2026 年 5 月 9 日 --- 搜索插件 ![](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 作者：[YoOhw Studio](https://profiles.wordpress.org/yoohw/) [下载](https://downloads.wordpress.org/plugin/thumbnail-manager.1.2.zip) * [详情](https://cn.wordpress.org/plugins/thumbnail-manager/#description) * [评价](https://cn.wordpress.org/plugins/thumbnail-manager/#reviews) * [安装](https://cn.wordpress.org/plugins/thumbnail-manager/#installation) * [开发进展](https://cn.wordpress.org/plugins/thumbnail-manager/#developers) [支持](https://wordpress.org/support/plugin/thumbnail-manager/) ## 描述 Thumbnail Manager is a powerful tool to take full control over your WordPress image system. Instead of letting themes and plugins generate dozens of unnecessary thumbnails, you can now: * **Control which sizes are created** * **Remove unused thumbnails safely** * **Regenerate only what you actually need** All in one place. ### 🚀 What it does **1. Regenerate Thumbnails (NEW)** – Regenerate thumbnails based on your current enabled sizes – Works in batches with progress tracking (no timeout issues) – Perfect after disabling unwanted sizes – Ensures your Media Library stays consistent and optimized **2. Prune Unused Thumbnails** – Select sizes you want to **KEEP** – Automatically detect and remove all other generated thumbnails – Supports: – Registered sizes – Orphan `-WxH` files – `.webp`, `.bak`, `@2x`, `-1` variants **3. Orphan File Discovery** – Detect leftover thumbnails no longer registered – Clean legacy sizes from old themes/plugins – Optional aggressive cleanup mode **4. Disable Sizes for Future Uploads** – Prevent unnecessary thumbnails from being generated – Reduce storage usage going forward – Keeps your system lean and predictable **5. Recommendations** – Get recommendations for commonly safe thumbnail sizes – Highlights WordPress core and WooCommerce-related sizes – Helps identify likely unused custom sizes – Quickly apply suggested sizes before regenerating or pruning **6. Scoped Processing** – Limit operations to specific folders (year/month) – Safer testing on large Media Libraries ### ❌ What it does NOT do * It **does NOT delete original full-size images** * It **does NOT modify image quality or compression** * It **does NOT replace image optimization plugins** * It does not automatically run actions without your confirmation ### 🎯 Who is it for? * WooCommerce stores with heavy image usage * Sites using multiple themes/page builders * Developers cleaning legacy media bloat * Anyone hitting disk limits or slow backups ### Features * 4-tab UI: **Regenerate**, **Recommendations**, **Prune Files**, **Thumbnail Sizes** * Batch processing with AJAX (no timeouts) * Dry-run preview before deletion * Smart orphan detection * Progress bars + live feedback * Future upload size control * Multisite compatible (run per site) * Recommendation engine for safer cleanup decisions * WooCommerce-aware protected size detection * Apply recommended sizes with one click ### Usage ### Recommended Workflow 1. Go to **Recommendations** 2. Scan media usage suggestions 3. Apply recommended sizes 4. Go to **Thumbnail Sizes** 5. Save changes and run regenerate 6. Review and clean old thumbnails in **Prune Files** ### Prune Files 1. Select sizes to **KEEP** 2. Run **Dry-run** first 3. Review results 4. Switch to **Delete** and execute ### Thumbnail Sizes * Enable/disable sizes for future uploads * Does NOT affect existing images until prune/regenerate is used ### Technical Notes * Uses `intermediate_image_sizes_advanced` to control generation * Uses AJAX batching to avoid server timeout * Safe file targeting via pattern matching * Requires `manage_options` capability ### Privacy This plugin does not collect or transmit any personal data. All operations are performed locally on your server. ## 屏幕截图 * [[ * Regenerate tab with progress system * [[ * Recommendations tab with suggested sizes * [[ * Prune Files with dry-run preview * [[ * Thumbnail Sizes configuration panel ## 安装 1. Upload the plugin to `/wp-content/plugins/` or install via WordPress. 2. Activate the plugin. 3. Go to **Tools Thumbnail Manager**. ## 常见问题 ### Will this delete my original images? No. Only generated thumbnails are affected. ### Should I back up first? Yes. Always back up before deleting files. ### What is “Orphan discovery”? It detects thumbnails on disk that are no longer registered in WordPress. ### When should I use Regenerate? After changing enabled sizes — to rebuild correct thumbnails. ### Are Recommendations fully automatic? No. Recommendations are based on protected/core thumbnail sizes and common usage patterns. Always review suggestions and use Dry-run before deleting thumbnails. ### Does it unregister sizes? No. It prevents generation using filters instead. ### Is it safe for large sites? Yes. Uses batch processing and folder scoping. ## 评价 此插件暂无评价。 ## 贡献者及开发者 「Thumbnail Manager」是开源软件。 以下人员对此插件做出了贡献。 贡献者 * [ YoOhw Studio ](https://profiles.wordpress.org/yoohw/) [帮助将「Thumbnail Manager」翻译成简体中文。](https://translate.wordpress.org/projects/wp-plugins/thumbnail-manager) ### 对开发感兴趣吗? 您可以[浏览代码](https://plugins.trac.wordpress.org/browser/thumbnail-manager/)， 查看[SVN仓库](https://plugins.svn.wordpress.org/thumbnail-manager/)，或通过[RSS](https://plugins.trac.wordpress.org/log/thumbnail-manager/?limit=100&mode=stop_on_copy&format=rss) 订阅[开发日志](https://plugins.trac.wordpress.org/log/thumbnail-manager/)。 ## 更新日志 #### 1.2 (May 9, 2026) * ✨ Added **Recommendations** tab for safer thumbnail cleanup decisions * ✨ Added recommendation engine for WordPress core and WooCommerce-related sizes * ✨ Added one-click “Apply recommended sizes” * ✨ Added improved workflow: Recommendations Sizes Regenerate Prune * ✨ Added scoped regenerate processing: - All media - Current year - Specific uploads folders - Specific attachment IDs * ✨ Added “Force regenerate all” option * ✨ Added “Only generate missing thumbnails” optimization * ✨ Added “Save changes and run regenerate” workflow * ✨ Added Regenerate as the default tab * 🔧 Improved regenerate batching and UI progress handling * 🔧 Improved AJAX architecture and tab interaction handling * 🔧 Improved overall media optimization workflow for large sites #### 1.1 (Mar 19, 2026) * ✨ Added **Regenerate Thumbnails** feature with batch processing and progress UI * ✨ Added **“Save changes and run regenerate”** workflow * ✨ Set **Regenerate tab as default entry** * ✨ Improved UX flow between Sizes Regenerate Prune * ✨ Added automatic trigger for regenerate after saving sizes * ✨ Improved admin JS handling for multi-tab interaction * 🔧 Refactored internal handlers for regeneration logic * 🔧 Improved performance for large media libraries #### 1.0.1 (Dec 3, 2025) * Added full translation support * Improved UI labels and formatting * Accessibility improvements #### 1.0 (Oct 5, 2025) * Initial release * Prune Files with dry-run and batch deletion * Orphan detection * Disable sizes for future uploads ## 额外信息 * 版本 **1.2** * 最后更新：**3 周前** * 活跃安装数量 **60+** * WordPress 版本 ** 6.3 或更高版本 ** * 已测试的最高版本为 **6.9.4** * PHP 版本 ** 7.4 或更高版本 ** * 语言 * [English (US)](https://wordpress.org/plugins/thumbnail-manager/) * 标签 * [cleanup](https://cn.wordpress.org/plugins/tags/cleanup/)[images](https://cn.wordpress.org/plugins/tags/images/) [media](https://cn.wordpress.org/plugins/tags/media/)[regenerate](https://cn.wordpress.org/plugins/tags/regenerate/) [thumbnails](https://cn.wordpress.org/plugins/tags/thumbnails/) * [高级视图](https://cn.wordpress.org/plugins/thumbnail-manager/advanced/) ## 评级 尚未提交反馈。 [Your review](https://wordpress.org/support/plugin/thumbnail-manager/reviews/#new-post) [查看全部评论](https://wordpress.org/support/plugin/thumbnail-manager/reviews/) ## 贡献者 * [ YoOhw Studio ](https://profiles.wordpress.org/yoohw/) ## 支持 最近两个月解决的问题： 总计 1，已解决 1 [查看支持论坛](https://wordpress.org/support/plugin/thumbnail-manager/)