Title: Custom Thumbnail Generator
Author: Subrata Sarkar
Published: <strong>4 de septiembre de 2025</strong>
Last modified: 29 de septiembre de 2026

---

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# Custom Thumbnail Generator

 Por [Subrata Sarkar](https://profiles.wordpress.org/subrataemfluence/)

[Descargar](https://downloads.wordpress.org/plugin/custom-thumbnail-generator.1.0.2.zip)

 * [Detalles](https://es.wordpress.org/plugins/custom-thumbnail-generator/#description)
 * [Valoraciones](https://es.wordpress.org/plugins/custom-thumbnail-generator/#reviews)
 *  [Instalación](https://es.wordpress.org/plugins/custom-thumbnail-generator/#installation)
 * [Desarrollo](https://es.wordpress.org/plugins/custom-thumbnail-generator/#developers)

 [Soporte](https://wordpress.org/support/plugin/custom-thumbnail-generator/)

## Descripción

Custom Thumbnail Generator is a powerful tool for defining and managing custom image
sizes in WordPress.

**Key Features**

    ```
    * **AJAX-powered Interface:** Add, remove, and regenerate thumbnails instantly without a page reload.  

    * **Theme Independence:** Custom image sizes are decoupled from themes, ensuring they remain accessible and functional even when themes are switched.  

    * **Consistent Image Handling:** Provides developers, photographers, and content creators with precise control over image dimensions.
    ```

### License

This plugin is licensed under the [GNU General Public License v2 or later (GPLv2+)](https://www.gnu.org/licenses/gpl-2.0.html).

You are free to use, modify, and distribute this plugin under the terms of the GPL
license.

## Capturas

[⌊A screenshot of the main settings page, showing all available options.⌉⌊A screenshot
of the main settings page, showing all available options.⌉[

A screenshot of the main settings page, showing all available options.

## Instalación

 * Upload the plugin folder to `/wp-content/plugins/`.
    - Activate the plugin via the **Plugins** menu in WordPress.
    - Go to **Settings > Custom Thumbnail Generator** to configure your image sizes.

## FAQ

### Will this delete existing thumbnails?

No. Removing a size only prevents future generation. Existing files remain untouched.

### Does it support multisite?

Yes, activate network-wide to manage thumbnails across subsites.

### Can this generate or regenerate a single thubnail size?

Yes, the plugin allows you to create and generate a specific thumbnail size instead
of always using in bulk option.

### Can theme generated thumbnails be deleted?

No. Option to remove any thumbnail size registered by a theme or WordPress core 
is not possible.

### Is there any restriction on the number of thumbnail sizes that can be created?

No. There is absolutely no restriction on the number of thumbnail sizes. Unlimited
number of thumbnail sizes can be registered and made avaialble across all themes.

## Reseñas

![](https://secure.gravatar.com/avatar/c1c00610095c3e525c57bf8a781fd698f989057f5899f18588238542c3ea5604?
s=60&d=retro&r=g)

### 󠀁[Does the job well](https://wordpress.org/support/topic/does-the-job-well-156/)󠁿

 [aayushpranay](https://profiles.wordpress.org/aayushpranay/) 13 de octubre de 2026

Pretty useful plugin if you need custom thumbnail sizes in WordPress. I like that
you can add and regenerate thumbnails without reloading the page. Also good that
the sizes don't depend on the theme, so switching themes shouldn't mess things up.
Simple and handy plugin to have.

![](https://secure.gravatar.com/avatar/9e92c707b717971c6444e66a51117825e5ddf3eb75fdedb5fcdcb4cde689f6bc?
s=60&d=retro&r=g)

### 󠀁[Great plugin for managing custom thumbnail sizes with ease and flexibility](https://wordpress.org/support/topic/great-plugin-for-managing-custom-thumbnail-sizes-with-ease-and-flexibility/)󠁿

 [kausalsikaria](https://profiles.wordpress.org/kausalsikaria/) 25 de septiembre
de 2026

Really useful plugin for creating and managing custom thumbnail sizes in WordPress.
The interface is simple, the workflow is smooth, and the Pro features like manual
focal-point control make it even more useful for precise image cropping. A practical
solution for developers and site owners who need better control over WordPress image
sizes.

![](https://secure.gravatar.com/avatar/bce4390eb2d18bbd487778b768fcc6ce03c4c92be519040c7d7a7f842d59e804?
s=60&d=retro&r=g)

### 󠀁[Excellent Time Saver!](https://wordpress.org/support/topic/excellent-time-saver-21/)󠁿

 [Rabin Kumar Pal](https://profiles.wordpress.org/robinpal/) 24 de septiembre de
2026

I've been using Custom Thumbnail Generator for a while now, and it has significantly
reduced the time I spend creating thumbnails. The interface is clean, easy to understand,
and the generated thumbnails look professional. Highly recommended for anyone who
wants a faster workflow.

![](https://secure.gravatar.com/avatar/0e382ff70d8a5c524ae67399d8feaad61c570c5d81e703aa25e616478b83ab3d?
s=60&d=retro&r=g)

### 󠀁[Convenient!](https://wordpress.org/support/topic/convenient-37/)󠁿

 [Jacob Schwartz](https://profiles.wordpress.org/mightyturtle/) 24 de septiembre
de 2026

Straightforward, does what it says

![](https://secure.gravatar.com/avatar/ce4e3049d3dca426186161a30b575d0f2a1b40eaf1d1e511e810c7d3ffafa990?
s=60&d=retro&r=g)

### 󠀁[Simple, fast, and does exactly what it says!](https://wordpress.org/support/topic/simple-fast-and-does-exactly-what-it-says/)󠁿

 [Ritika Roy](https://profiles.wordpress.org/ritikaroy2830/) 10 de marzo de 2026

The plugin is lightweight and easy to use. The interface is very simple to generate
custom image sizes without any hassle.

![](https://secure.gravatar.com/avatar/042087f1c25d9d32936d43c646d066bc48f7dab9e18338d76168c6ce945b38c7?
s=60&d=retro&r=g)

### 󠀁[Great features and superb flexible!!](https://wordpress.org/support/topic/great-features-and-superb-flexible/)󠁿

 [bodhaditya](https://profiles.wordpress.org/bodhaditya/) 10 de marzo de 2026

The best feature of this plugin is the the theme independent thumbnails generation
where it stores the sizes irrespective to the theme!! With a lot of features i have
got awesome flexibility and ease of use. Highly recommended!!

 [ Leer todas las 7 reseñas ](https://wordpress.org/support/plugin/custom-thumbnail-generator/reviews/)

## Colaboradores y desarrolladores

«Custom Thumbnail Generator» es un software de código abierto. Las siguientes personas
han colaborado con este plugin.

Colaboradores

 *   [ Subrata Sarkar ](https://profiles.wordpress.org/subrataemfluence/)

[Traduce «Custom Thumbnail Generator» a tu idioma.](https://translate.wordpress.org/projects/wp-plugins/custom-thumbnail-generator)

### ¿Interesado en el desarrollo?

[Revisa el código](https://plugins.trac.wordpress.org/browser/custom-thumbnail-generator/),
echa un vistazo al [repositorio SVN](https://plugins.svn.wordpress.org/custom-thumbnail-generator/)
o suscríbete al [registro de desarrollo](https://plugins.trac.wordpress.org/log/custom-thumbnail-generator/)
por [RSS](https://plugins.trac.wordpress.org/log/custom-thumbnail-generator/?limit=100&mode=stop_on_copy&format=rss).

## Registro de cambios

#### 1.0.2

 * WordPress version compatibility

#### 1.0.1

 * WordPress version compatibility
 * Small CSS modification

#### 1.0.0

 * Initial release
 * AJAX table loader and thumbnail manager
 * Nonce validation and security best practices

## Meta

 *  Versión **1.0.2**
 *  Última actualización **hace 2 semanas**
 *  Instalaciones activas **10+**
 *  Versión de WordPress ** 6.5 o superior **
 *  Probado hasta **7.1.3**
 *  Versión de PHP ** 7.0 o superior **
 *  Idioma
 * [English (US)](https://wordpress.org/plugins/custom-thumbnail-generator/)
 * Etiquetas:
 * [ajax](https://es.wordpress.org/plugins/tags/ajax/)[Custom Image Size](https://es.wordpress.org/plugins/tags/custom-image-size/)
   [media library](https://es.wordpress.org/plugins/tags/media-library/)[regenerate](https://es.wordpress.org/plugins/tags/regenerate/)
   [thumbnails](https://es.wordpress.org/plugins/tags/thumbnails/)
 *  [Vista avanzada](https://es.wordpress.org/plugins/custom-thumbnail-generator/advanced/)

## Valoraciones

 5 de 5 estrellas.

 *  [  7 valoraciones de 5 estrellas     ](https://wordpress.org/support/plugin/custom-thumbnail-generator/reviews/?filter=5)
 *  [  0 valoraciones de 4 estrellas     ](https://wordpress.org/support/plugin/custom-thumbnail-generator/reviews/?filter=4)
 *  [  0 valoraciones de 3 estrellas     ](https://wordpress.org/support/plugin/custom-thumbnail-generator/reviews/?filter=3)
 *  [  0 valoraciones de 2 estrellas     ](https://wordpress.org/support/plugin/custom-thumbnail-generator/reviews/?filter=2)
 *  [  0 valoraciones de 1 estrellas     ](https://wordpress.org/support/plugin/custom-thumbnail-generator/reviews/?filter=1)

[Tu valoración](https://wordpress.org/support/plugin/custom-thumbnail-generator/reviews/#new-post)

[Ver todas las reseñas](https://wordpress.org/support/plugin/custom-thumbnail-generator/reviews/)

## Colaboradores

 *   [ Subrata Sarkar ](https://profiles.wordpress.org/subrataemfluence/)

## Soporte

¿Tienes algo que decir? ¿Necesitas ayuda?

 [Ver el foro de soporte](https://wordpress.org/support/plugin/custom-thumbnail-generator/)