Title: Selective Thumbnail Regenerator Author: Adi Glibanović Published: May 27, 2025 Last modified: May 27, 2025 --- Search plugins ![](https://ps.w.org/selective-thumbnail-regenerator/assets/banner-772x250.png?rev =3301521) ![](https://ps.w.org/selective-thumbnail-regenerator/assets/icon-256x256.png?rev =3301521) # Selective Thumbnail Regenerator By [Adi Glibanović](https://profiles.wordpress.org/rberet/) [Download](https://downloads.wordpress.org/plugin/selective-thumbnail-regenerator.1.0.2.zip) * [Details](https://wordpress.org/plugins/selective-thumbnail-regenerator/#description) * [Reviews](https://wordpress.org/plugins/selective-thumbnail-regenerator/#reviews) * [Installation](https://wordpress.org/plugins/selective-thumbnail-regenerator/#installation) * [Development](https://wordpress.org/plugins/selective-thumbnail-regenerator/#developers) [Support](https://wordpress.org/support/plugin/selective-thumbnail-regenerator/) ## Description The Selective Thumbnail Regenerator plugin provides a convenient way to regenerate image thumbnails for WordPress media libraries. Unlike other thumbnail regeneration plugins that process the entire library, this plugin allows you to selectively regenerate thumbnails for images uploaded during a specific year and month. #### Key Features * **Date-based Selection**: Choose a specific year and month to limit which thumbnails are regenerated * **Progress Tracking**: Visual progress bar shows the status of the regeneration process * **User-friendly Interface**: Simple dropdown menu interface for date selection * **Resource-friendly**: Built-in delay between each regeneration to prevent server overload * **Real-time Updates**: Status messages show the current progress and any errors ### Usage 1. In your WordPress admin panel, navigate to Tools > Selective Thumbnail Regenerator. 2. Select the year and optionally the month for which you want to regenerate thumbnails. 3. Click “Check Number of Images” to see how many images will be processed. 4. Click “Regenerate Thumbnails” to start the regeneration process. 5. Wait for the process to complete – you’ll see a progress bar and status updates. ### Troubleshooting #### Error: “No images found for the selected period” This means there are no images in your media library that were uploaded during the selected year and month. Try selecting a different time period. #### The regeneration process is slow This is normal behavior. The plugin deliberately adds a 1-second delay between processing each image to prevent server overload. This might make the process seem slow, but it ensures stability. #### The process stops with an error message If you encounter an error during regeneration, check your server’s PHP error logs for more details. Common issues include memory limits, timeout settings, or file permission problems. ## Installation 1. Download the plugin ZIP file. 2. Log in to your WordPress admin panel. 3. Go to Plugins > Add New > Upload Plugin. 4. Upload the ZIP file and click “Install Now”. 5. Activate the plugin through the “Plugins” menu in WordPress. ## FAQ ### Why would I need to regenerate thumbnails? You might need to regenerate thumbnails if: * You’ve changed your theme and it uses different thumbnail sizes * You’ve modified the thumbnail sizes in WordPress settings * You’ve installed a plugin that adds new thumbnail sizes * Your thumbnails are corrupted or missing ### Will this plugin delete any of my original images? No, the plugin only regenerates thumbnail versions of your existing images. The original uploaded images remain untouched. ### How long does the regeneration process take? The time depends on several factors, including: * The number of images in the selected period * Your server’s processing power * The size of your original images * The number of thumbnail sizes defined in your WordPress installation The plugin includes a 1-second delay between processing each image to prevent server overload. ### What happens if I close the browser during regeneration? The regeneration process will stop if you navigate away from the page or close your browser. You’ll need to restart the process when you return. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “Selective Thumbnail Regenerator” is open source software. The following people have contributed to this plugin. Contributors * [ Adi Glibanović ](https://profiles.wordpress.org/rberet/) [Translate “Selective Thumbnail Regenerator” into your language.](https://translate.wordpress.org/projects/wp-plugins/selective-thumbnail-regenerator) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/selective-thumbnail-regenerator/), check out the [SVN repository](https://plugins.svn.wordpress.org/selective-thumbnail-regenerator/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/selective-thumbnail-regenerator/) by [RSS](https://plugins.trac.wordpress.org/log/selective-thumbnail-regenerator/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.2 * Security: Added capability checks to AJAX handlers for improved security * Removed unnecessary plugin assets * Removed empty languages folder and Domain Path header * Code structure improvements #### 1.0.1 * Security: Added ABSPATH protection to prevent direct file access * Compatibility: Updated “Tested up to” value to WordPress 6.8 * Code Standards: Changed all prefixes from ‘str’ to ‘strgrtr’ for uniqueness * Updated main class name to STRGRTR_Thumbnail_Regenerator * Fixed contributor username in readme * Updated all JS/CSS/HTML elements to use consistent prefixes #### 1.0.0 * Initial release ## Meta * Version **1.0.2** * Last updated **11 months ago** * Active installations **20+** * WordPress version ** 5.5 or higher ** * Tested up to **6.8.5** * PHP version ** 7.0 or higher ** * Tags * [images](https://wordpress.org/plugins/tags/images/)[media](https://wordpress.org/plugins/tags/media/) [regenerate](https://wordpress.org/plugins/tags/regenerate/)[thumbnails](https://wordpress.org/plugins/tags/thumbnails/) * [Advanced View](https://wordpress.org/plugins/selective-thumbnail-regenerator/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/selective-thumbnail-regenerator/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/selective-thumbnail-regenerator/reviews/) ## Contributors * [ Adi Glibanović ](https://profiles.wordpress.org/rberet/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/selective-thumbnail-regenerator/)