reGenerate Thumbnails Advanced


A free, fast, and easy-to-use Regenerate Thumbnails plugin, created and maintained by the team behind ShortPixel Image Optimizer.

The reGenerate Thumbnails Advanced (RTA) plugin is ideal if you are switching to a new WordPress theme with different image sizes. It updates your old thumbnails to fit your new theme and the Pro version helps you clean up unused thumbnails, to ensure all your images have the perfect size.

Simplicity is the key with our plugin, it’s as easy as 3 clicks and you’re good to go 😉

– You can choose to regenerate thumbnails only for featured images;
– You can easily customize the thumbnail list by adding any number of additional thumbnail sizes to suit your needs;
– You can select the preferred image quality for the regenerated thumbnails;
– Clean, simple and user-friendly interface with a progress bar showing the percentage of regenerated images;
– Statistics at the end of the process showing the total number of thumbnails regenerated;
«Resume» feature that picks up the regeneration process exactly where you left off if your browser processing tab closes unexpectedly or you have manually paused the process;
– And fully integrated with ShortPixel Image Optimizer for thumbnails compression and enhanced functionality;

PRO Features:
You will find exciting features in the PRO version, with more to come:
WP-CLI support to regenerate thumbnails. Especially useful for websites with a very large number of images, or when wp-admin resources are limited;
Automatic removal of outdated thumbnails that are no longer used;
– You can choose to delete the metadata for missing images and thumbnails;
Remove missing images and thumbnails from the media library if they no longer exist on the disk, along with the associated metadata;
– Automatically start image optimization with ShortPixel Image Optimizer immediately after regenerating the thumbnails;
Select intervals (last day, last week, last month or all images at once) for thumbnails regeneration as well as a custom interval of your choice;

Enhance Your WordPress website with the reGenerate Thumbnails Advanced Plugin

Managing images in the WordPress environment can sometimes be complex, but the reGenerate Thumbnails Advanced plugin simplifies this task, enhancing your website’s visual esthetics. More than just a standard WP thumbnail plugin, it offers unique features to improve the functionality and appeal of your website.

Easy Image Management for WordPress Users

One of the biggest challenges for WordPress website owners is keeping image sizes consistent. This is where our plugin comes into play, not only regenerating thumbnails but also changing the visual presentation of your website. Whether you’re updating a theme or revamping the look of your website, the reGenerate Thumbnails Advanced plugin will help you keep your images consistent and professional.

Regenerate Thumbnails Made Easy

For anyone who has ever experienced the need to regenerate thumbnails WordPress-wide, our plugin offers an intuitive and user-friendly approach. It is designed to fit perfectly in the WordPress environment, and ensures that your images are always presented in the best possible way without you having to laboriously adjust them manually.

Optimized Thumbnails for Improved Performance

Once you’ve successfully regenerated your thumbnails with Regenerate Thumbnails Advanced, the next step is a breeze. Easily optimize these thumbnails with ShortPixel Image Optimizer to significantly boost their performance. This integration not only ensures that your images are of the highest quality but also increases the overall efficiency of your website. With ShortPixel’s powerful optimization features, you can look forward to faster load times, improved SEO, and a better user experience.

A Versatile Tool for Different Needs

Whether you run a personal blog or a large e-commerce platform with WooCommerce, the reGenerate Thumbnails Advanced plugin is versatile enough to meet a variety of needs. It’s more than just regenerate thumbnails WooCommerce-style; it’s a comprehensive image management solution.

Optimize WordPress Thumbnails for Peak Performance

In the WordPress domain, the impact of thumbnails on website esthetics and performance cannot be overstated. Our plugin not only helps WordPress regenerate thumbnails but also optimizes these thumbnails for improved loading speed and quality, enhancing the overall user experience.

Full Control Over Your Thumbnails

The ability to force regenerate thumbnails gives you complete control over how your images are displayed. This aspect of the reGenerate Thumbnails Advanced plugin is particularly useful for those who frequently update their content and need their images to reflect these changes immediately.

For support please contact us here making sure you mention reGenerate Thumbnails Advanced (RTA) plugin.

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  • Página de ajustes del plugin


Nada especial acerca del proceso de instalación, solamente visita la sección «Plugins» en tu /wp-admin, busca «regenerate thumbnails advanced», instala & activa el plugin, y luego desde la sección Ajustes podrás empezar a usarlo.

Preguntas frecuentes

¿Puedo regenerar solo unas cuantas imágenes?

Tienes una opción para escoger entre: todo, último día, última semana, último mes

¿Qué pasa si cierro la página cuando el proceso de regeneración se está llevando a cabo?

El script se para pero continúa al abrir la página de ajustes del plugin una vez más.


4 de abril de 2024 1 respuesta
Fortunately I got the pro version in my Shortpixel subscription. I have not compared it with the free versrion. But pro has been working very well for me. Also, support has been friendly, quick and helpful.
2 de abril de 2024
It was a normal and useful plugin. Now it is completely useless. Hopefully I had a backup and kept the old version 2.4.1 that works.
2 de abril de 2024 2 respuestas
After the last update, looks like the greedy bastards took away some of most needed features and now you have to pay for it. Plenty of other plugins that do this for free. WTF is Shortpixel thinking?
27 de marzo de 2024 2 respuestas
So all of the sudden they converted the plugin to premium and claim «You will find exciting features in the PRO version».Well, there is nothing new, there are all the typical features converted to PRO version.I would really consider buy the PRO version if you added some PRO features in addition to the already free features, but convert the existing features and renaming them as «PRO» is sad.
2 de marzo de 2024 5 respuestas
I’m a paid Shortpixel subscriber for their image optimization plugin. The regenerate thumbnail plugin was a useful companion plugin, but now they have removed many basic features from the free version and moved them into a «Pro» version for $50/year. I’m sorry, but this is a joke! What were they thinking? I get that there are development costs, but surely this plugin was always just a way to gather customers for the paid image optimization plugins? Why would I pay this when other plugins do the same things for free? I feel like, at a minimum, there should have been some combined license so that people who are already paying Shortpixel can still get these features. What attracted me to Shortpixel and caused me to leave Imagify was the ecosystem of useful plugins. Image optimizer, thumbnail regenerate, replace media, etc. Everything played nicely together. Now I’ll lose that. Annoying users who never paid them is one thing, but it seems short-sighted to annoy users who are already paying them. It doesn’t make me excited to keep paying them. Should I expect them to start charging for Enable Replace Media plugin soon, too? Extremely frustrated.
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Colaboradores y desarrolladores

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Registro de cambios


Release date: February 12, 2024
* New: Added a statistic at the end of the process that shows the total number of thumbnails regenerated;
* New: Regenerate Thumbnails Advanced PRO is now available with exciting new features;
* New: Thumbnail sizes are now displayed in the plugin settings;
* Tweak: Added clear wording and explanation for the «Force Regenerate Thumbnails» feature;
* Tweak: Reorganized the plugin settings, updated the wording and links of the plugin.
* Compat: Updated the integration with ShortPixel Image Optimizer;
* Fix: Compatibility with PHP 8.1, 8.2 and 8.3;
* Fix: The plugin settings look better on mobile;
* Fix: Regenerating thumbnails for WebP files now works properly;
* Fix: SHIFT+select works correctly in the plugin settings;
* Fix: All plugin strings can now be translated;
* Fix: Files that are not processed by the plugin (e.g. SVG, PDF, etc.) are skipped instead of displaying errors.


Release date: February 27, 2023
* Fix: Videos uploaded with VideoPress were removed from the Media Library when using the «Remove non-existing images» option;


Fecha de lanzamiento: 1 de diciembre de 2020
* Nuevo: Botón de pausa;
* Nuevo: Ahora, la reanudación del proceso desde otra página se inicia en pausa;
* Nuevo: Añadido un filtro para aumentar el número de elementos procesados por ejecución;
* Corrección: Los usuarios que optimicen más de 50 mil imágenes podrían encontrarse con una protección de bucle del código.


Fecha de lanzamiento: 17 de agosto de 2020
* Corrección: El período de regeneración ahora se calcula a partir del tiempo establecido en WordPress para respetar la configuración de la zona horaria.


Fecha de lanzamiento: 13 de julio de 2020
* Corrección: Advertencia de PHP que se mostraba en PHP 7.4.x.


Fecha de lanzamiento: 29 de mayo de 2020
* Nuevo sistema de colas que debería ser más eficiente;
* Nuevo – Añadido botón de regenerar miniaturas en la pantalla de editar medios adjuntos;
* Corregido – Fallo al regenerar la imagen desde la pantalla de editar medios;
* Corregido – Las consultas para una gran cantidad de imágenes ya no deben expirar;
* Correcciones para la capacidad adaptativa de la pantalla de regeneración;
* Cargador de clases trasladado a PSR-4.


Fecha de lanzamiento: 9 de marzo de 2020
* Reelaborada y mejorada la interfaz de proceso
* Opción en la biblioteca de medios para regenerar solo una imagen
* Se verificará post_mime_type en las entradas y se arreglará cuando esté vacío.
* Se ha eliminado el procesamiento basado en cookies, ahora se mantiene el progreso como un ajuste del servidor
* Procesos internos optimizados.
* Corregido – Manejo de imágenes e imágenes escaladas de WordPress 5.3
* Corregido – Los metadatos no se eliminaban en algunos casos cuando se marcaba «Eliminar metadatos de imagen sobrantes».
* Corregido – Logger no llama a wp_upload_dir cuando no está depurando


Fecha de lanzamiento: 7 de junio de 2019
* Reemplaza las dos opciones de Tamaño exacto para imágenes destacadas / sin destacar, por una sola casilla de selección Solo destacadas
* Botón para parar la regeneración
* Mantener existentes activado por defecto
* Cambia la lista de selección «Regenerar miniaturas seleccionadas» a una selección de ajustes
* Integración con ShortPixel Image Optimizer – llama a la acción ‘shortpixel-thumbnails-regenerated’ pasando solo los tamaños cambiados
* Corrección: Seguridad – Exploit XSS de tamaños de imágenes
* Corrección: count(): Parámetro tiene que ser un array


Fecha de lanzamiento: 17 de abril de 2019
* Corregidas las advertencias relacionadas con metadatos corruptos en algunos casos


Fecha de lanzamiento: 16 de abril de 2019
* Plugin completamente reescrito con funciones adicionales añadidas:
* Añade miniaturas personalizadas
* Selecciona qué miniaturas regenerar
* Regenera las miniaturas solo para las imágenes destacadas
* Reescribe las miniaturas existentes o no dependiendo de las opciones seleccionadas
* Integrado perfectamente con ShortPixel Image Optimizer
* Elimina miniaturas no utilizadas del disco
* Elimina metadatos de imágenes y miniaturas faltantes


  • consulta el archivo changelog.txt dentro del plugin archivado para las versiones anteriores a la reescritura completa 2.0.0.