Refresh image sizes after WordPress changes
reGenerate Thumbnails Advanced Pro is designed for WordPress sites that need to update existing thumbnails after image dimensions change. This is especially useful when moving to a theme with different image sizes or revising how images are presented across a site.
The plugin provides a focused workflow for selecting images, choosing the thumbnail sizes to create, and monitoring the process. Its interface includes a progress bar and end-of-process statistics showing the total number of thumbnails regenerated. If processing is paused or the browser tab closes unexpectedly, the Resume feature can continue from where the process stopped.
Pro tools for regeneration and cleanup
- Regenerate thumbnails with WP-CLI, which is useful for sites with very large numbers of images or limited wp-admin resources.
- Automatically remove outdated thumbnails that are no longer used.
- Choose whether to delete metadata for missing images and thumbnails.
- Remove missing images and thumbnails from the media library when they no longer exist on disk, together with associated metadata.
- Select a regeneration interval covering the last day, last week, last month, all images, or a custom interval.
- Automatically start image optimization with ShortPixel Image Optimizer immediately after thumbnail regeneration.
Control what gets regenerated
The workflow can be narrowed to featured images when that is the appropriate choice for a project. You can also add any number of additional thumbnail sizes to the thumbnail list and select the preferred image quality for regenerated files. These controls help match the regeneration process to the site’s current image requirements.
Interval selection is useful when a media library contains images from different periods or when the work should be limited to a defined group. A custom interval provides another way to target the images that need attention instead of processing the entire library at once.
Practical use cases
Use the Pro edition after changing a WordPress theme, adjusting image-size requirements, or reviewing older thumbnail files. It can help bring existing images into line with the current presentation while providing cleanup controls for thumbnails and media entries that are no longer needed or no longer available on disk.
For larger media libraries, WP-CLI support offers an alternative to working entirely through wp-admin. For sites using ShortPixel Image Optimizer, the automatic optimization option can connect the regeneration step with image optimization in the same workflow.
Installation and first steps
Install reGenerate Thumbnails Advanced Pro in WordPress, then open its regeneration controls and select the image scope, thumbnail sizes, image quality, and interval. Start the process and follow the progress bar. Review the completion statistics, and use the cleanup or ShortPixel options when they fit the site’s requirements.
If processing is interrupted, use the Resume feature to continue from the previous stopping point. When a command-line workflow is more suitable, use the available WP-CLI support for regeneration.
