Descripción

🚀 El plugin definitivo de optimización de imágenes para WordPress

⚡ Speed up your website with automatic image compression, WebP and AVIF conversion, and bulk optimization. Optimize images and PDFs, resize large uploads, and reduce file sizes with minimal setup.

Smaller images help your pages load faster, giving visitors a smoother experience, supporting your website’s SEO, and helping turn more visits into conversions.

🆕 New! AI image renaming and assistant support

AI-generated, SEO-friendly filenames – Say goodbye to generic filenames like «IMG00931.JPG». Automatically generate descriptive, SEO-friendly filenames for new uploads or existing images not yet used in published content.
Manual file renaming – Rename images directly from the Media Library, including their thumbnails, WebP/AVIF versions, and backups.
Multisite network settings – Manage ShortPixel settings across your network from one place.
WPML and WP Offload Media compatibility – File renaming supports WPML Media Translation and WP Offload Media, including images stored only in the cloud.
AI assistants and MCP support – Connected AI assistants can optimize and restore images, run bulk jobs, generate or undo AI Image SEO data, check statistics and credits, and adjust settings through the WordPress Abilities API and WordPress MCP Adapter. Actions follow your WordPress user’s permissions. Read more.

The ShortPixel plugin is a lightweight, user-friendly, install-and-forget solution for image optimization.
It is designed to work with any website type, whether it’s a small blog or a large WooCommerce-powered online store with tens of thousands of products.

🎬 ¿Listo para una DEMO rápida de nuestra mejor herramienta de optimización de imágenes?

Test our plugin here.
Run an instant image compression test on your site, or try out our image compressor and compress some images to test our optimization algorithms.

💡 ¿Por qué ShortPixel es la mejor opción para la optimización de imágenes o la compresión de PDF?

🤖 AI image features

Ampliación de imagen con IA (2x, 3x, 4x): amplía imágenes más pequeñas con un aumento de calidad mediante IA, perfecto para pantallas retina y visuales nítidos.
AI Background Removal – Instantly remove background from your images with one click, ideal for creating clean product photos. After the background is removed, your image can have a transparent background or be filled with a single solid color.
AI Image Titles – In addition to ALT text, captions, and descriptions, generate smart image titles using AI for better SEO.
Eliminación masiva de datos de IA: elimina fácilmente todos los datos SEO de imágenes generados por IA de una sola vez.
Prefix/suffix for AI SEO data – Add custom text before or after AI-generated image SEO data to keep it consistent across your site

🔎 AI Image SEO features

AI-powered image SEO – Automatically generate ALT text, captions, and image descriptions for all your images.
SEO-friendly filenames – Let AI generate descriptive filenames for new uploads or images not yet used in published content, without breaking existing links.
Bulk mode – Mass-generate and update details for all your images.
Preview mode – Test and fine-tune AI results before applying new ALT texts and descriptions in bulk.
Multilingual – Support for 100+ languages.
WooCommerce – Seamless support for WooCommerce product images.
Unlimited credits – AI-generate image titles, captions, and more with our Unlimited AI plan.
Accessibility – Improve website accessibility by generating all the necessary metadata for each image.

🌍 Sitios web más rápidos para audiencias globales

Improve your website’s loading speed with ShortPixel’s built-in global Content Delivery Network (CDN). Deliver optimized WebP and AVIF images, along with CSS, JavaScript, and font files, from locations closer to your visitors. The result? Faster loading times, better website performance, and less strain on your server.

📸 Redimensiona y comprime imágenes sin perder calidad

Automatically resize large images and compress image files, saving you the work of editing each upload manually.

Popular plugin with over 300,000 active installations – according to WordPress
Comprime imágenes JPG (y sus variantes: JPEG, JPEG 2000, JPEG XR), PNG, GIF (estáticas o animadas) y también documentos PDF.
Opción para convertir automáticamente PNG a JPG si eso da como resultado imágenes más pequeñas (ideal para imágenes PNG grandes).
Conversión de CMYK a RGB.
Se usa JPEG progresivo siempre que da lugar a una imagen más pequeña.

🌟 Compresión de imágenes con pérdida y sin pérdida

Both Lossy and Lossless image compression are available for the most common image types (JPG, PNG, GIF, WebP, and AVIF) plus PDF files.
We also offer Glossy JPEG compression, a high-quality lossy optimization algorithm designed especially for photographers and websites featuring high-quality product pictures.
Optimized images improve website performance and user experience, help achieve better PageSpeed Insights and GTmetrix scores, and may even increase conversions. Choose Lossless for pixel-perfect image quality, Glossy for an excellent balance between quality and compression, or Lossy for maximum file size reductions.

🔄 Convert Images to WebP and AVIF

ShortPixel includes both a WebP converter and an AVIF converter, with options for generating and delivering the converted files.

Opción para convertir automáticamente JPEG, PNG o GIF a WebP y AVIF para un mejor rendimiento y un mejor posicionamiento en Google.
Automatically optimize your existing WebP files with ShortPixel’s SmartCompress algorithm.
Los GIF animados se pueden convertir automáticamente a archivos WebP o AVIF animados mucho más pequeños.
Opción para incluir imágenes de próxima generación (WebP y AVIF) en las páginas del frontend con un solo clic usando la etiqueta.

📦 Optimización masiva de imágenes y procesamiento en segundo plano

Use the bulk image optimizer for bulk image compression and bulk image optimization. You can bulk compress images in a single workflow.

With ‘Background mode,’ images can be optimized without needing to keep a browser tab open.
Añade fácilmente tareas cron recurrentes para optimización en segundo plano, ideal para sitios donde los usuarios suben imágenes a través del frontend.
Bulk-optimize all images in the Media Library or any gallery with a single click. Use this media optimizer to optimize Media Library images without processing each file manually.
Filtra y selecciona imágenes en masa usando criterios basados en fechas, lo que te da un control preciso sobre qué se optimiza y cuándo.
Compatibilidad completa con WP-CLI para procesamiento en segundo plano, especialmente útil para bibliotecas de medios grandes.

🔥 Rendimiento y optimización automática de imágenes

ShortPixel uses minimal resources and works well with any shared, cloud, VPS, or dedicated web hosting. It can optimize any image on your website, including those not listed in the Media Library, such as images in galleries or those added directly via FTP.
All optimization is performed using ShortPixel’s Image Optimization Cloud, so your hosting resources remain unaffected. Automatic image optimization lets you optimize images on upload.

Automatic scan of Custom media folders for new images using cron jobs.
Saltar imágenes ya optimizadas para evitar procesamiento redundante.

🎨 Compatibilidad con temas populares, constructores de páginas y plugins de biblioteca de medios

Works great for eCommerce websites using WooCommerce and other plugins. WooCommerce image optimization helps reduce the file sizes of your product photos.
Compatible con NextGEN Gallery, Modula, Foo Gallery y otras galerías o carruseles.
Totalmente compatible con WP Retina 2x, incluida la compresión automática de imágenes retina.
Works seamlessly with WordPress multisite installs (sub-folders or sub-domains) using a single API key, with settings that can be managed at network level.
Fully compatible with WPML and WPML Media Translation, including file renaming.
Fully compatible with WP Offload Media plugin, including file renaming.
Admite sitios web HTTPS y HTTP.
Compatible con prácticamente todos los proveedores de alojamiento.
Se integra con el tipo de campo post_image de Gravity Forms para optimizar imágenes al subirlas.
Funciona con plugins de marcas de agua.
Se integra directamente con Cloudflare a través de un token de Cloudflare, sincronizando automáticamente las actualizaciones con la caché de Cloudflare.
HEIC file support
With ShortPixel, you can add images in Apple’s HEIC format directly from your iPhone. They will be automatically converted to JPG and optimized according to your settings. Easy!
Read more.

🔧 Características avanzadas de optimización de imágenes

Smart Cropping: Generate subject-centered thumbnails using AI, ideal for eCommerce websites.
Optimiza miniaturas e imágenes destacadas, con opciones para excluir miniaturas individuales de la optimización.
Opciones de exclusión avanzadas (excluir imágenes según nombre de archivo, ruta, tamaño o regex complejo).
Exclude images from optimization based on their file size, perfect for skipping very small images or large images that photographers need to keep in their original, full format.
Capacidad para optimizar cualquier imagen, incluidas las de NextGEN Gallery y otras galerías de imágenes o carruseles.
Option to scale images down, with two automatic resizing options for large images (applicable to featured images). Optimize image dimensions before serving large uploads.
Opción para desactivar la optimización automática de imágenes al subirlas.
Keep or remove EXIF data from images, which is especially useful for photographers or for enhanced privacy. Combine photo optimization with the metadata settings that suit your photography workflow.
Prueba fácilmente versiones con pérdida, glossy o sin pérdida de las imágenes con un solo clic en la biblioteca de medios.
100MB file size limit

🛡️ Copia de seguridad y seguridad

Seguro para probar y usar: las imágenes originales se guardan en una copia de seguridad local y se pueden restaurar con un solo clic (de forma individual o masiva).
Smart Backups: Save disk space by backing up only the main image. When restoring, thumbnails are automatically regenerated based on current settings.
Automatic Backup Cleanup: Set rules to automatically delete old backups after a chosen period.
No se usan créditos para imágenes optimizadas en menos de un 5%
Save & Restore option for all settings – ideal for agencies and users managing multiple websites.
Decide whether AI bots can use your images for machine learning (ML) training, or block them entirely.

📊 Informes, analítica, cumplimiento normativo y atención al cliente

Informe de optimización de 30 días con estadísticas detalladas de imágenes y mejoras generales del rendimiento del sitio.
Soporte excelente 24/7.
Cumplimos totalmente con el GDPR.

🚀 ShortPixel Unlimited Plan
This is the ideal monthly plan for web agencies or website owners with multiple sites and frequent image uploads.
It allows you to optimize an unlimited number of images with ShortPixel Image Optimizer or use ShortPixel Adaptive Images without worrying about CDN traffic limits.
Read more details on our dedicated page.

free optimization credits for non-profits, contact us for details

💸 How much does it cost?
ShortPixel comes with 100 free credits per month, and additional unlimited monthly credits can be purchased for $9.99.
One-time credit packages that never expire are available starting at $19.99.
Check out our prices.

🌟 Testimonios:
★★★★★ A Super Plugin works very well 62% reduction overall. robertvarns
★★★★★ The secret sauce for a WordPress website. mark1mark
★★★★★ A must have plugin, great support! ElColo13
★★★★★ Excellent Plugin! Even Better Customer Service! scaliendo
★★★★★ Great image compression, solid plugin, equally great support. matters1959
más testimonios

Help us spread the word by recommending ShortPixel to your friends and collect 100 lifetime monthly additional image credits for each referred active user. Make money by promoting a great plugin with our 30% commission affiliate program.

🛠️ Otros plugins de ShortPixel

FastPixel Caching – Optimización de WP hecha fácil
ShortPixel Adaptive Images – Optimización de imágenes sobre la marcha & entrega desde CDN
Enable Media Replace – Reemplaza fácilmente imágenes o archivos en la biblioteca de medios
reGenerate Thumbnails Advanced – Regenera miniaturas fácilmente
Resize Image After Upload – Cambia automáticamente el tamaño de cada imagen subida
WP SVG Images – Subida segura de archivos SVG a la biblioteca de medios
ShortPixel Critical CSS – Automatically generate above-the-fold CSS for faster loading times and better SEO scores

📩 ¡Ponte en contacto!

Email https://shortpixel.com/contact
Twitter https://twitter.com/shortpixel
Facebook https://www.facebook.com/ShortPixel
LinkedIn https://www.linkedin.com/company/shortpixel

Acciones y filtros para desarrolladores

El plugin ShortPixel Image Optimizer llama a las siguientes acciones y filtros:

do_action( 'shortpixel_image_optimised', $post_id );

tras una optimización correcta;

do_action("shortpixel_before_restore_image", $post_id);

antes de restaurar una imagen desde una copia de seguridad;

do_action("shortpixel_after_restore_image", $post_id);

after successful restore;

apply_filters('shortpixel_image_urls', $URLs, $post_id);

filtra las URL que se enviarán a optimizar, $URLs es un arreglo simple;

do_action('shortpixel/image/after_restore', $this, $this->id, $cleanRestore);

Esta acción se puede usar para limpiar los metadatos de la base de datos, regenerar miniaturas después de restaurar el archivo principal, escribir los metadatos actualizados, etc.

apply_filters('shortpixel/settings/image_sizes', $sizes);

filtra el array ($sizes) de tamaños de imagen que se pueden excluir del procesamiento (mostrado en los ajustes avanzados del plugin);

apply_filters('shortpixel/image/imageparamlist', $result, $this->id, $this);

filtra la lista de parámetros enviados a la API para que el redimensionamiento se pueda realizar de forma más granular;

apply_filters('shortpixel/api/request', $requestParameters, $item_id);

filters the parameters sent to the optimization API (through $requestParameters), described in detail here: ShortPixel Reducer API; $item_id contains the ID of the Media Library item, or the ID of the Custom Media item (when used). In short, this filter can be used to alter any parameters sent to the API, depending on the needs. For example, you can set different resize parameters for different post types, different compression levels, remove EXIF or not, convert WebP/AVIF, and basically any other parameter that is sent to the API for a specific image (together with all its thumbnails).

This filter enables the background ShortPixel processing in additional pages (see here the original list). Here’s an example of this filter that enables the processing on the Comments screen (to be placed in your functions.php file):

add_filter('shortpixel/init/optimize_on_screens', function ($screens) {
    $screens[] = 'edit-comments';
    return $screens;
});

El edit-comments es el ID de la pantalla donde quieras activar el procesado.

Si quieres añadir varias páginas, el fragmento de código es así:

add_filter('shortpixel/init/optimize_on_screens', function ($screens) {
    $screens = array('edit-comments', 'plugins', 'another-custom-post-type-page');
    return $screens;
    });


add_filter('shortpixel/image/filecheck', function () { return true; });

Este filtro fuerza una comprobación de archivos WebP/AVIF en caso de que se hayan eliminado manualmente del disco.

Si quieres desactivar el vaciado automático de caché que se activa después de la optimización de imágenes, puedes usar este filtro:

add_filter( 'shortpixel/external/flush_cache', function() { return false; } );

Para definir miniaturas personalizadas para que se procesen en la optimización, tienes dos opciones, donde ambos defines tienen separaciones por comas:

define('SHORTPIXEL_CUSTOM_THUMB_SUFFIXES', '_tl,_tr');

gestionará miniaturas personalizadas como «imagen-100x100_tl.jpg»;

define('SHORTPIXEL_CUSTOM_THUMB_INFIXES', '-uae');

gestionará miniaturas personalizadas como «imagen-uae-100×100.jpg»;

define('SHORTPIXEL_USE_DOUBLE_WEBP_EXTENSION', true);
define('SHORTPIXEL_USE_DOUBLE_AVIF_EXTENSION', true);

dirá al plugin que cree extensiones dobles para las imagen WebP/AVIF equivalentes, por ejemplo, «imagen.jpg.webp»/«imagen.jpg.avif» para «imagen.jpg»;

Activa el «modo de confianza» en caso de que el sistema de archivos tenga limitaciones y responda muy lentamente a las operaciones directas de archivos añadiendo esta constante:

define('SHORTPIXEL_TRUSTED_MODE', true);

Esto simplemente omitirá las operaciones de comprobación de archivos y si la biblioteca de medios se carga muy lentamente o se cuelga, quizás quieras intentar añadir la constante anterior a tu archivo wp-config.php.

Desactiva la encuesta de comentarios cuando se desactiva el plugin:

define('SHORTPIXEL_SKIP_FEEDBACK', true);

Capturas

Seleccionar opciones de optimización masiva. (Medios -> ShortPixel masivo)

Optimización por lotes en curso. (Medios -> Lotes ShortPixel) — Seleccionar opciones de optimización masiva. (Medios -> ShortPixel masivo)

Instalación

Vamos a ejecutar el plugin de ShortPixel en tu web WordPress:

Sign up using your email at https://shortpixel.com/wp-apikey.
Recibirás tu clave de API personal en un correo electrónico de confirmación, en la dirección que proporciones.
Sube el plugin de ShortPixel a la carpeta /wp-content/plugins/
Usa tu clave de API única para activar el plugin de ShortPixel en el menú «Plugins» en WordPress.
Las imágenes subidas se pueden optimizar automáticamente en la Biblioteca de medios.
¡Hecho!

FAQ

¿Cómo es ShortPixel comparado con otros plugins de optimización de imágenes (por ejemplo, Smush, Imagify, TinyPNG, Kraken, EWWW), Optimole?

ShortPixel consistently has better compression rates along with more features, backup support and has very affordable one-time or monthly plans.
Here are a couple of independent reviews:
AuthorityHacker – «ShortPixel is our tool of choice, simply because it’s pretty much automated – we just let it do its thing.» (read full review)
WP Modula – «One of the reasons I’m personally a huge fan of ShortPixel is the built-in support for next-gen image formats like WebP.» (read full review)

¿Puedo usar la misma clave de API en múltiples sitios?

Sí, puedes hacerlo.
Mientras tengas créditos disponibles, ¡puedes usar una única clave de API en tantas webs como desees!

¿Qué plan es el que más me conviene? ¿Qué me recomendáis?

Everyone has different needs, but generally, we recommend getting a One-Time plan to optimize your whole Media Library and then get a Monthly plan to optimize your future uploads. To learn more, have a look at this comparison

How many thumbnails do I have, and which plan should I choose?

To know how many thumbnails you have, just install the plugin and go to Media > Bulk ShortPixel. The plugin will tell you how many thumbnails you’ve got. Based on this, have a look at our plans

¿Puedo mejorar o reducir fácilmente mi plan?

Por supuesto. Puedes actualizar o reducir tus planes con un par de clics desde tu cuenta en shortpixel.com.

¿Puedo probar/usar el plugin gratis?

Sí, puedes hacerlo.
Ofrecemos 100 créditos gratuitos de optimización de imágenes cada mes. Superar la cuota mensual gratuita pausará el proceso de optimización hasta que la cuota se restablezca o amplíe comprando uno de nuestros planes.

¿Puedo optimizar imágenes que no existen en la biblioteca de medios?

Por supuesto.
De hecho, puedes optimizar cualquier imagen que tengas en tu sitio, independientemente de su ubicación. Solo tienes que añadir, en la sección Avanzado de los Ajustes de ShortPixel, las carpetas donde se ubican las imágenes que quieras optimizar y ShortPixel hará su magia y hará el resto.

¿Puedo optimizar imágenes antiguas y nuevas?

¡Por supuesto!
Puedes optimizar todas tus imágenes y fotos, antiguas y actuales, usando nuestra página de «ShortPixel en lotes» en tus medios con un solo clic.

¿Un crédito = una imagen optimizada?

Sí, eso es correcto.
Pero ten en cuenta que, por lo general, una imagen en la biblioteca de medios tiene 5 o más miniaturas asociadas. Cada miniatura optimizada requiere un crédito. Sin embargo, en los pocos casos en los que ShortPixel no optimice la imagen (con pérdida) en al menos un 5%, el crédito no se contará.

¿Puedo restaurar mis imágenes? ¿Qué pasa con las originales?

Si eliges la opción «Copia de seguridad» en Ajustes/ShortPixel, la versión original de cualquier imagen o PDF optimizado se guardará en la carpeta de copia de seguridad.
La imagen original es necesaria si quieres restaurar una imagen o si quieres convertir una imagen de con pérdida / glossy a sin pérdida o viceversa.

¿Qué tipos de formato se pueden optimizar?

ShortPixel optimiza los tipos de archivos JPEG (JPG, JPEG, JPEG 2000, JPEG XR), PNG, GIF (animados y fijos) y PDF.

¿Tenéis planes de un solo uso?

Yes we do.
The credits that come with our one-time plans never expire. Yummy! 🙂

¿Qué pasa con mis imágenes existentes?

Tus imágenes existentes son reemplazadas por las optimizadas.
Si eliges la opción de copia de seguridad, las originales se guardarán en una carpeta separada para que puedas restaurarlas si alguna vez necesitas/quieres hacerlo.

¿Cómo funciona el plugin?

Nuestro ligero plugin envía las imágenes originales a nuestra Nube de optimización de imágenes, donde se comprimen. ShortPixel luego descarga las imágenes optimizadas y las originales sin optimizar se reemplazan con las versiones optimizadas.

¿Optimizáis las imágenes en la nube?

Sí, todas las imágenes procesadas por ShortPixel están optimizadas en la nube. Esto quita la carga de tu servidor y nos permite obtener los mejores resultados.

¿Qué métodos de pago son aceptados?

Aceptamos pagos con tarjeta (Mastercard, Visa, Maestro, American Express, Discover, Diners Club, JCB, UnionPay), PayPal y Apple Pay.

¿Cómo activo la clave de API en un multisitio?

Tienes que activar el plugin en la administración de la red y, después, activarlo manualmente en cada sitio individual del multisitio. Una vez que lo hayas hecho, aparecerá el menú de ajustes y podrás añadir la clave de la API para cada sitio individual.
Como alternativa, puedes editar el archivo «wp-config.php» y añadir esta línea:

define('SHORTPIXEL_API_KEY', 'APIKEY');

donde APIKEY es la clave recibida de la API al registrarse.
Si se configura de esa forma, la clave de la API se usará para todos los sitios del multisitio, pero solo será visible en la página de ajustes del sitio principal, estando oculta para el resto de los sitios.

No soy el único que trabaja en el escritorio de WordPress. ¿Cómo puedo ocultar mi clave de API?

Hay una sencilla forma de ocultar la clave de la API, todo lo que tienes que hacer es añadir estas dos líneas a tu archivo «wp-config.php»:

define('SHORTPIXEL_API_KEY', '<<your api key here>>');
define('SHORTPIXEL_HIDE_API_KEY', true);

¿Cuánto es un crédito?

Se utiliza un crédito cada vez que ShortPixel optimiza una imagen o miniatura en al menos un 5%. Si no podemos optimizar una imagen o miniatura en al menos un 5%, no se utilizará ningún crédito 🙂
Ten en cuenta que, por lo general, las imágenes en tu biblioteca de medios tienen 3-5 miniaturas asociadas, y se utilizará un crédito por cada imagen destacada o miniatura asociada que se optimice.

¿Por qué debería usar un plugin de WordPress y no una herramienta off-line?

Porque los algoritmos de ShortPixel se han perfeccionado al optimizar más de 3 mil millones de imágenes reales.
ShortPixel no solo ofrece la mejor compresión para archivos JPEG, PNG, GIF y PDF, sino que también te ahorra mucho tiempo. Simplemente instálalo en tu sitio y, a continuación, ShortPixel se encargará de que todas las imágenes de tu sitio se optimicen inmediatamente después de subirlas.

¿La optimización de imágenes afecta a mis etiquetas ALT?

Image compression does not change your ALT text. If you enable AI Image SEO, ShortPixel can also generate image metadata according to your selected settings.

Si dejo de usar ShortPixel, ¿mis imágenes permanecerán optimizadas?

¡Por supuesto!
Una vez optimizadas, las imágenes permanecerán optimizadas a menos que elijas explícitamente restaurarlas. ¿Pero por qué hacer eso? 🙂

¿Tengo que pagar mensualmente o una vez?

We have both options available.
One-time credits never expire and are a bit more expensive. Check out our prices here

¿Cuándo puedo cancelar un plan mensual?

Cuando quieras.
Los créditos que aún tengas disponibles en el período de facturación actual seguirán estando disponibles hasta el final del período de facturación. Al final, no se te volverá a facturar y el plan se restablecerá al plan gratuito.

¿Cuándo caducan los créditos?

Los créditos mensuales caducan después de 30 días, mientras que los créditos de un solo uso nunca caducan.

¿Tenéis una API?

Yes, we have several APIs and tools.
You can learn more about it here:
https://shortpixel.com/api-tools

¿Puedo usar el plugin de WordPress de ShortPixel en una instalación localhost?

Unfortunately not 🙁
But you can use either our command line tool or our web tool
https://shortpixel.com/web-tool-docs
https://shortpixel.com/cli-docs

¿Cómo funciona el redimensionamiento?

Si eliges la opción para cambiar el tamaño de las imágenes de tu sitio, entonces la imagen destacada puede ser redimensionada a un tamaño predefinido, manteniendo su aspecto y sus proporciones intactas. Las miniaturas asociadas no serán redimensionadas.
Con esta opción puedes subir de forma segura las imágenes originales sin necesidad de procesarlas previamente para hacerlas más pequeñas.

Will ShortPixel work if my website is using CloudFlare?

Absolutely! Sometimes you’ll need to make sure you whitelist some IPs, just contact us and we’ll assist you with that.

¿Dónde informo de los errores de seguridad encontrados en este plugin?

Por favor, informa de los errores de seguridad encontrados en el código fuente del plugin ShortPixel Image Optimizer a través del programa de divulgación de vulnerabilidades de Patchstack. El equipo de Patchstack te ayudará con la verificación, la asignación de CVE y notificará a los desarrolladores de este plugin.

¿Utiliza el plugin servicios externos?

Este plugin se integra con Chatbase (https://www.chatbase.co) para ofrecer soporte por chat con IA directamente dentro de la interfaz del plugin. Esta integración permite a los usuarios del plugin hacer preguntas y recibir asistencia automatizada. Los únicos datos que se recopilan son el país (sin ciudad ni ubicación exacta) y el propio mensaje.

Términos de servicio de Chatbase.

Estoy atascado. ¿Qué hago?

The ShortPixel team is here to help. Contact us!

¿Cómo comprimo imágenes sin perder calidad en WordPress?

Select Lossless compression in ShortPixel’s settings to reduce file sizes without changing image quality. You can apply it to existing images in bulk and automatically compress new uploads. The reduction in file size depends on the original image.

¿Qué es la optimización de imágenes?

La optimización de imágenes consiste en reducir el tamaño de archivo de las imágenes sin comprometer su calidad, para mejorar el rendimiento del sitio web. Esto se puede hacer con herramientas como ShortPixel, que comprime imágenes, las convierte a formatos más eficientes como WebP y asegura que tengan el tamaño adecuado para tiempos de carga más rápidos. Las imágenes optimizadas ayudan a mejorar la velocidad del sitio web, mejorar la experiencia del usuario y aumentar el posicionamiento SEO al reducir el tiempo de carga de la página y el uso de ancho de banda.

¿Cómo optimizar una imagen en WordPress?

Install ShortPixel, connect your API key, and choose your compression settings. Run Bulk ShortPixel to optimize existing images, or enable automatic optimization for new uploads. You can also generate WebP and AVIF versions and resize large images.

How do I optimize images for SEO?

Para optimizar imágenes para SEO en WordPress, usa el plugin ShortPixel para comprimirlas y convertirlas sin perder calidad, reduciendo los tiempos de carga, un factor clave para el SEO. Añade nombres de archivo descriptivos y texto ALT con palabras clave relevantes para ayudar a los motores de búsqueda a entender tus imágenes. Además, redimensiona las imágenes a las dimensiones adecuadas y considera convertirlas a WebP para un rendimiento más rápido. ShortPixel facilita todo este proceso, ayudando a mejorar tanto tu posicionamiento SEO como la velocidad del sitio.

¿Cómo optimizas las imágenes para el rendimiento?

Para optimizar imágenes para el rendimiento en WordPress, usa el plugin ShortPixel para comprimir imágenes sin sacrificar calidad, reduciendo los tamaños de archivo para tiempos de carga más rápidos. Convierte imágenes a formatos eficientes como WebP y asegúrate de que estén correctamente redimensionadas para ajustarse al diseño de tu sitio. ShortPixel automatiza este proceso con un solo clic, aumentando la velocidad de tu sitio web, mejorando la experiencia del usuario y mejorando el SEO, todos elementos clave para un rendimiento óptimo.

Reseñas

maged kamel 12 de octubre de 2026 1 respuesta

The Team of ShortPixel is great and Helpful.

rensesjoers 12 de octubre de 2026 1 respuesta

I've been using it for some years now and must say it's a relief. ShortPixel saves time and space for all the photos I have on my website. It's just perfect.

gelegenheitswebdesigner 10 de octubre de 2026 1 respuesta

Originally I was skeptical, but the tool shrinks down the good old JPG files without quality loss, so the loading time of the page improved significantly. It works almost unnoticeable in the background, so you no longer have to mess around with scaling of your photos to a different size etc.What I love very much is the prepaid payment model: You can buy a number credits that suit you needs/project and are good to go. No subscription required – you pay for what you need and you definitely get for what you paid for. That's really fair and one of the main reason I chose this plugin. Keep up the good work!

panopticdesignaccount 9 de octubre de 2026 1 respuesta

Been using this plugin for years. It is simple, efficient, and easy to use. Great support, and it keeps getting developed.

Andrew Postelniak 8 de octubre de 2026 1 respuesta

I tried out several popular image optimization plugins but ultimately settled on Short Pixel. It's very easy to set up, has no bugs, and, of course, has a fair pricing policy: you can make a one-time payment instead of a monthly subscription, which is ideal for small sites that don't require regular image optimization. I definitely recommend it.

Prasad Babu 7 de octubre de 2026 1 respuesta

ShortPixel brings image optimization and WebP/AVIF conversion together in one useful WordPress plugin. It helps reduce image file sizes and supports faster page loading. A practical choice for keeping an image-rich website lighter and more efficient.

Leer todas las 828 reseñas

Colaboradores y desarrolladores

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Registro de cambios

6.6.0

🏷️ The Smart Filenames & Multisite Update

Release Date: October 6, 2026

✨ New Features

AI SEO-Friendly Filenames: ShortPixel can now rename your images using descriptive, SEO-friendly filenames generated by AI. To keep your site safe, renaming applies only to newly uploaded images or to images that are not yet used in any published content, so no existing links can break.
Manual File Renaming: Rename any image directly from the Media Library edit screen. The main file, its thumbnails, the WebP/AVIF versions and the backups are all renamed together.
Multisite Network Settings: On multisite installations, the plugin settings can now be managed at network level by the super admin and applied across all sites, with the site-wide tools restricted to super admins.
Full WPML Compatibility: File renaming (AI and manual) works with WPML and its Media Translation add-on, keeping all language versions of an image in sync.
Full Offload Media Compatibility: File renaming (AI and manual) works with WP Offload Media, including images that are offloaded to the cloud only, and keeps the access permissions (ACL) of your files.
AI Assistants & MCP Support: ShortPixel now registers its actions as WordPress Abilities (WordPress 6.9+), so AI assistants connected to your site through the WordPress MCP Adapter can operate the plugin for you.

⚙️ Improvements

AI Content Replacement Control: A new setting lets you choose whether AI-generated SEO data should be added to images in your posts and pages only when it’s missing, overwrite the existing data, or leave your content untouched.
Better Front-End Delivery: The WebP/AVIF delivery via the tag now handles filenames with spaces, brackets or quotes, as well as background images, more reliably.
Accurate AI Credits in Bulk Summary: The Bulk Summary now shows your AI credits, with a clear note for plans that include unlimited AI usage.
Updated Interface & Texts: Many strings across the settings, bulk processing and media screens have been rewritten for clarity, and a number of texts that previously couldn’t be translated are now included in the translation files.
Comprehensive Automated Testing: The plugin now runs a comprehensive suite of automated tests (unit, integration, compatibility, multisite and end-to-end browser tests) on every change, on all the supported PHP versions, complemented by the relevant manual tests done by our engineering and testing teams.

🔒 Security

XSS Fix: Hardened the output escaping in the front-end WebP/AVIF delivery markup and in the Bulk Processing error log, preventing a potential cross-site scripting issue, safely disclosed by the PatchStack team.
CSRF Fix: Strengthened the nonce verification for the actions on the Settings and Tools pages, preventing a potential cross-site request forgery issue, safely disclosed by the PatchStack team.

🛠️ Fixes

Trusted Mode: Fixed fatal errors when optimizing, viewing or deleting images with Trusted Mode enabled.
Repeated Re-Optimization: Fixed a case where some thumbnails were never marked as optimized, so the same image could be sent for optimization again on every run.
WebP/AVIF Delivery via .htaccess: The rules now work correctly on LiteSpeed servers and behind caches/CDNs, with the right caching headers for each format.
AI & Optimization Conflicts: AI tasks and optimization tasks for the same image no longer overwrite or block each other.
PNG Conversion Order: PNG to JPG conversion on upload now happens before AI SEO data is generated.
Backup Cleanup: The automatic backup removal now also removes folders that still contain files.
Legacy Data Migration: Fixed incorrect original sizes, missing thumbnails and loading issues for images optimized with older versions of the plugin.
Stats & Restore Accuracy: Fixed several edge cases with incorrect totals, stats and restore results.
Bulk AI SEO from Media Library: The «Generate Image SEO» bulk action in the Media Library list view now also works for images that are not optimized yet.
Gutenberg Image Blocks: Fixed image blocks that could become corrupted when applying AI SEO data.
Undo AI SEO Data: Fixed undoing AI-generated SEO data, both for single images and in bulk.
API Key Recovery: Fixed a fatal error caused by a corrupted or empty API key entry in the database.
Multisite Debug Mode: Fixed a fatal error on multisite installations when debug mode was enabled.
WPML Language Domains: Fixed file detection on WPML sites that use separate domains or directories per language.
Safari Quick Tour: The onboarding quick tour now works correctly in Safari.
PHP 8.5 Compatibility: Removed deprecated cURL calls and fixed a deprecation notice when reading image dimensions.
Downloads Default to HTTPS: Optimized files are now always downloaded over HTTPS (the protocol can still be changed with a filter).
Custom Media, WP-CLI & Settings: Fixed several smaller issues with Custom Media folders, WP-CLI commands, cron tasks, the Tools page and saving settings.

Update now to give your images SEO-friendly names, manage your network from one place and enjoy a more secure and reliable plugin! 🚀

6.5.6

🛡️ The Security & Fixes Update

Release Date: September 9, 2026

🔒 Security

Hardened Content Replacement: The content replacer now blocks PHP object instantiation when processing serialized data, preventing potential object injection through crafted content, resposibly disclosed by the WordFence and PatchStack teams.

🛠️ Fixes

Automatic Backup Removal: Fixed an issue that prevented the automatic removal of old backups from ever running, even when the option was enabled.
CDN Links & Crawlers: Changed the parameter separator in CDN links from a comma to a plus sign, preventing some crawlers and SEO tools from misreading srcset URLs and reporting false 404 errors.

Update now for improved security and reliability! 🚀

6.5.5

🛡️ The Stability Update

Release Date: July 21, 2026

🛠️ Fixes

Download Error Handling: Fixed a fatal error that could occur when ShortPixel was unable to download an optimized file from the API, with clearer error messages now shown instead. Thanks to Tremi Dkhar for the contribution!
Queue Robustness: Fixed a PHP warning that could occur when processing queue items without a remote ID.
AJAX Response Fix: Fixed a possible issue when sending array-based responses during optimization processing.

Update now for a more stable and reliable optimization experience! 🚀

6.5.4

⚡ The Optimization Flow Update

Release Date: July 6, 2026

🛠️ Fixes & Improvements

Smarter Credit Handling: Automatic image optimization will now continue even if AI credits are exhausted, as long as image optimization credits are still available.
AVIF Loop Prevention: Fixed a rare case where PHP limitations could not identify the MIME type correctly and could cause an infinite optimization loop for some AVIF files received from the optimization API.
Cleaner Browser Console: Removed optimization-related console logs from production. They are now only shown when plugin debug mode is enabled, with an additional filter available to disable them completely if needed.
Queue Stability: Fixed a rare error that could occur under specific conditions within the optimization queue.
Better Bulk Error Help: Bulk processing errors now link directly to the ShortPixel Knowledge Base search, making it easier to find the most relevant solution.
WordPress 7.0 UI Tweaks: Updated the Bulk Processing interface to better match the layout and styling changes introduced in WordPress 7.0.

Update now for a smoother optimization workflow, improved reliability, and a more polished experience! 🚀

6.5.3

🔧 The Reliability & Compatibility Update

Release Date: June 25, 2026

🛠️ Fixes

Restore Metadata Fix: Restoring an image now correctly restores the original file size in the metadata instead of keeping the optimized size.
Improved Host Compatibility: Removed the dependency on PHP’s getmypid() function, improving compatibility with hosting environments where it’s disabled.
JSON Serialization Fix: Resolved a rare issue where JSON serialization could fail in specific edge cases.

🤝 Compatibility Updates

Breakdance & Oxygen Ready: Added compatibility with upcoming versions of the Breakdance and Oxygen builders to ensure a smooth experience as these platforms evolve.

Update now for improved reliability, broader compatibility, and an even smoother optimization experience!

6.5.2

☁️ The Offload & Backup Reliability Update

Release Date: June 4, 2026

⚡ Performance Improvements

Offload Media + AWS S3: Improved performance by reducing useless remote operations for websites using Offload Media with Amazon S3, resulting in a smoother and more efficient optimization workflow.

🛠️ Fixes & Improvements

Optimization Data Migration: Fixed an error that could occur when migrating legacy image optimization data to the new format.
Custom Media Search Stability: Resolved an issue caused by unusual search requests on Custom Media pages.
Smart Backups Filename Conflict: Fixed a rare edge case where multiple files requiring conversion, uploaded with the exact same filename during the same month, could cause issues when Smart Backups were enabled.
Backup System Enhancements: Various reliability improvements and small fixes across the backup system.
Code documentation: Improved the overall code documentation of the plugin.

Update now for a faster, more reliable experience, especially if you’re using AWS S3 and Smart Backups! 🚀☁️

6.5.1

🛠️ The Hotfix Update

Release Date: May 5, 2026

🐛 Fixes

Settings Page Fix: Resolved an issue affecting the Settings page in certain edge cases.
Backups System Fix: Fixed an issue related to the new backups system that could appear in specific scenarios.

A small but important update to keep everything running smoothly! 🚀

6.5.0

🧠 The Smart Backups & AI Control Update

Release Date: May 5, 2026

✨ New Features

Smart Backups: Save disk space by backing up only the main image. When restoring, thumbnails are automatically regenerated based on current settings.
Automatic Backup Cleanup: Set rules to automatically delete old backups after a chosen period.
Consistent prefix/suffix for AI SEO Data: You can now add fixed text before/after AI-generated image SEO data for full consistency across your site.
Custom Media Re-Optimization: Re-optimize images directly from Custom Media bulk actions.
Custom Media Pagination: Navigate large media sets more easily with new pagination controls.

⚙️ Improvements

Smarter Title Replacement: Image titles are only replaced with AI-generated ones if they haven’t been manually edited (when overwrite protection is enabled).
Better Error Messaging: Improved the “401 Unauthorized” message in the AI SEO Preview for clearer feedback.
PNG Handling Improved: Improved the PNG to JPG conversion to better handle alpha channels.
AI Context Limits: Added proper limits to AI context fields to prevent truncation issues.
Bulk Stability: Introduced slight delays in Media Library bulk actions to avoid server overload.
Paused Processing Logic: Restoring an item now cancels any paused processing to avoid unnecessary actions.
UI Enhancements: Improved text clarity and layout across settings, bulk processing, and the ShortPixel panel in wp-admin.

🔄 Compatibility Updates

NextGen Gallery (Imagely): Integration restored using updated hooks and filters.
AI with EXIF Restrictions: AI generation now works even if EXIF blocks training (alternative data retrieval is used).
Offload Media Support: Improved compatibility with offloading plugins, including full support for the new Smart Backups.
Enable Media Replace: Image SEO data is now cleared when an image is replaced.
WPML Support: Manually generate AI SEO data in different languages for multilingual sites.

🛠️ Fixes

Backup System Refactor: Fixed multiple edge cases and improved reliability across all backup scenarios.
Long Processing Safeguards: Added checks for images that take too long to process or become unavailable.
Alias API Key Handling: Prevent unnecessary re-queuing for domains not allowed by Alias API keys.
AI Disabled Message Cleanup: Removed misleading “AI Generation Disabled” responses to avoid conflicts with editors/builders.
Database Optimization: Added indexes for the aipostmeta table for better performance.
Queue Stability: Ensure blocked items are released properly on shutdown to avoid stuck processes.
JS & jQuery Fixes: Resolved deprecation warnings and improved frontend stability.
Filesize Exclusion Fix: Fixed a JavaScript issue that prevented filesize-based exclusions from working correctly.

Update now to unlock smarter backups, better AI control, and improved compatibility across your entire workflow! 🚀

6.4.4

🌿 The Spring Update

Release Date: March 24, 2026

✨ New Feature

Exclusions by Filesize: You can now exclude images from optimization based on their file size, giving you even more precise control over what gets processed.

🛠️ Fixes

Bulk Operation Messaging: When running bulk actions other than optimization, the correct descriptive text is now displayed.
PICTURE Tag Fixes:
- Fixed issues with certain background images not being handled correctly.
- Multiple improvements to ensure correct paths and compatibility with Bedrock setups.
Long Domain Handling: Fixed cases where very long domains caused CDN URL replacement to fail.
Invalid API Key Feedback: A proper message is now shown in the AI settings preview when an invalid API key is used.
AI Disabled Notice Scope: «AI generation disabled» message now appears only in the settings preview to avoid conflicts (especially with the Classic Editor).
Async Chatbot Loading: The chatbot now loads asynchronously in settings to prevent slowdowns when CDN responses are delayed.
JS Worker Stability: The JavaScript worker no longer stops if invalid JSON is received from the backend.
LS Cache Compatibility: Fixed incompatibilities with LiteSpeed Cache and certain custom media folder setups.
Custom Media Errors: Resolved errors occurring during optimization of specific custom media folders.
open_basedir Improvements: Additional safeguards to prevent warnings with strict open_basedir configurations.
PHP 8.4 Deprecation Fix: Fixed a rare deprecation warning on PHP 8.4.

🛡️ Security Fixes

PHP Object Injection: Patched a potential vulnerability related to AI-generated SEO data (reported by PatchStack).
Stored XSS (Author+): Fixed an authenticated stored XSS vulnerability when using AI features (reported by WordFence).

✨ Tweaks & Improvements

Wording & Layout Updates: Small improvements to texts and settings layout for a cleaner and clearer experience.

Update now for stronger security, improved compatibility, and smarter control over your optimization workflows! 🚀

6.4.3

❄️ The Snowy Update

Release Date: January 29, 2026

🛡️ Security Fix

Editor-Level Access Patch: Fixed a potential vulnerability (responsibly reported by the WordFence team) where an authenticated Editor user could access arbitrary files.

🛠️ Fixes & Improvements

Bulk Restore Display Fix: Resolved an issue where the final step of the bulk restore process wasn’t being shown.
Bulk Labels Added: Each bulk action (restore, legacy migration, etc.) now shows a clear label for better tracking and transparency.
Custom Media Queue Info: Added more detailed status info for Custom Media items in the queue, now similar to what’s shown in the Media Library.
Respect Image Title Overrides: The AI will no longer overwrite image titles if the «Preserve existing data» option is enabled.
No Period on AI Titles: Removed the automatic period added at the end of AI-generated image titles.
New Picture Tag Filter: Developers can now hook into a new filter for customizing how next-gen images are delivered via the tag.
Improved CDN Detection: Enhanced logic to detect images declared across multiple lines when replacing with CDN links.
Disabled AI Fields Visibility: AI fields that are disabled in settings are now clearly marked in both the Settings preview and the Bulk Processing preview.
Bulk Logs Preserved: Logs from bulk processing are now retained even when backups are cleared via the Tools menu.
Multisite Settings Hidden: Temporarily hid the multisite settings menu due to related errors – it will return in a future release.
Correct Parent Page Context: Ensured that the parent post/page context of an image is properly sent to the AI API for better SEO relevance.

Update now for a more secure, transparent, and intelligent optimization experience! 🚀

6.4.2

📊 The Optimization Update

Release Date: January 15, 2026

🛠️ Fixes & Improvements

Media Library Optimization Display: Fixed an issue where optimized images were always shown as «bonus optimization» — the stats now reflect actual results.
Bulk UI Improvements: Cleaned up the layout of the bulk processing screen when only a few options are selected, for a more focused experience.
Percentage Hidden for Non-Optimization Actions: Removed the optimization percentage display when running bulk operations like restore or data migration (that don’t involve actual image optimization).
AVIF via .htaccess for WebPs: Added support for AVIF delivery using the .htaccess method for images added directly in the WebP format.
AI SEO Preview Fix: Prevented display of incorrect data in the AI SEO Preview section within plugin settings.
SmartCrop Percentage Display: Fixed the issue where SmartCrop could show a negative improvement percentage if the cropped image ended up larger in size.
JPG to PNG Conversion Fix: Resolved a rare error when JPG files saved as PNG conflicted with the PNG-to-JPG conversion setting.
PHP 8.5 Deprecation Fix: Fixed a deprecation warning added in PHP 8.5, thanks to @mondalaci.
Text & Typo Corrections: Polished various texts and corrected typos on the Bulk and Settings pages.

Update now for clearer stats, smarter previews, and a smoother optimization experience across the board! 🚀

6.4.1

🎄 The Christmas Update

Release Date: December 18, 2025

🎁 Fixes & Improvements

Temporary File Cleanup: Introduced a mechanism to automatically clean up temporary files after optimization, keeping your server tidy.
Zero-Byte File Protection: Prevents copying of 0-byte files from the /tmp/ folder in cases of permission errors or low tmp disk space.
IIS Compatibility Fix: Resolved a timestamp-related warning on IIS servers using 32-bit PHP environments.
Download Timeout Limit: Added a 25-second cap on item downloads to prevent conflicts with PHP’s 30-second timeout.
Manual Mode Debug Fix: Fixed an issue in the debug menu from the plugin settings when using manual debug mode.
Custom CDN Field Fix: Corrected a conflict where the custom CDN field was hidden if the «Premium Add-ons for Elementor» plugin was active.
Wording Improvements: Made several small text updates for better clarity throughout the plugin.

Update now and enjoy a smoother, more festive ShortPixel experience! 🎅🚀

6.4.0

🧠 The Ultimate AI Update

Release Date: November 20, 2025

✨ New Features

AI Image Upscale (2x, 3x, 4x): Upscale smaller images with high-quality AI upscaling, perfect for retina displays and crisp visuals.
AI Background Removal: Instantly remove image backgrounds with one click, great for clean product photos or transparent assets.
AI Image Titles: In addition to ALT text, captions, and descriptions, you can now generate smart image titles using AI for better SEO.
Date-Based Exclusions: Easily exclude images from processing based on their upload date.
Bulk Optimization by Date Interval: Run bulk optimization on a selected date range for precise control over what gets optimized and when.

🔄 Compatibility Updates

Infinite Uploads Integration: ShortPixel now works seamlessly with the Infinite Uploads plugin.
SliceWP Fix: Fixed an error triggered when the REST API of SliceWP was active.

🛠️ Fixes & Improvements

Bulk UI Redesign: The bulk processing interface has been reworked for a smoother, more intuitive experience.
Help Links Fixed: Resolved broken links in help pop-ups throughout the settings.
SmartCrop Logic Tweaked: Thumbnails cropped with SmartCrop no longer trigger unnecessary size checks.
Notification Scope Limited: Offer-related notifications now only appear on ShortPixel-specific pages like Settings and Bulk.
Banner Visibility Control: All banners in the settings can now be hidden using a simple filter, cleaner UI for advanced users.
File Conversion Stability: Fixed potential infinite conversion loops when uploading HEIC, TIFF, or BMP files.
WP-CLI AI Data Fix: Added checks to prevent regenerating AI image data via WP-CLI when it already exists, saving time and resources.

Update now to unlock powerful new AI features, refined bulk controls, and a cleaner, smarter interface! 🚀

6.3.5

🔐 The SmartCrop & Security Fix Update

Release Date: October 16, 2025

🛠️ Fixes & Improvements

SmartCrop Re-Optimization Fix: The “Re-optimize with/without SmartCrop” feature now correctly follows the selected action instead of always applying the saved setting.
AI SEO Preview Credit Message: A clear message is now displayed in the AI SEO preview (from Settings) when you’re out of credits.
French Locale Compatibility: Fixed an issue that prevented plugin deactivation when WordPress was set to French due to a language-related error.
AI SEO Limits Save Fix: The limits for AI-generated SEO text fields are now properly saved in the settings.
Bulk Background Mode Stability: Addressed intermittent failures of background processing in specific cron configurations.
Security Fix – Settings Import/Export: Patched a vulnerability that could allow contributor-level users to import/export plugin settings. Thanks to the WordFence team for the responsible disclosure!
CDN Link Fix for Inline Backgrounds: Inline background images using single quotes are now correctly replaced with CDN links.
Nonce Validation Improvement: Added checks for key form fields to prevent «nonce failed» errors when other plugins modify form data.
Inline Background-Image Fix: Ensured that all inline background-image styles end with a semicolon (;) when using the PICTURE tag to deliver next-generation images.

Update now for stronger security, improved SmartCrop behavior, and a smoother image SEO experience! 🚀

6.3.4

🤖 The Smarter AI Control Update

Release Date: September 18, 2025

✨ New Features & Improvements

Preserve Existing SEO Data: Added an option to keep your existing ALT, caption, and description fields untouched when using AI-generated image SEO — your manual work is safe!
Better Block Editor Integration: AI-generated SEO data and image optimization now work flawlessly when uploading images directly from the block editor.
AI Support Chatbot: Meet our new AI-powered support assistant — here to help you faster, 24/7.

🛠️ Fixes & Behavioral Improvements

Full AI Deactivation: Disabling AI Image SEO now also disables auto-generation and hides all related options from WP Admin, including the Bulk Processing section.
EXIF-Based AI Training Block: If AI training is blocked via EXIF data, the plugin now shows a clear message and prevents the image from being sent for processing.
Re-Optimize Logic Fixed: The «Re-optimize with/without SmartCrop» buttons now respect the selected option instead of always using the saved setting.
Inline Font Handling: Inline fonts will no longer be replaced with CDN links if the CSS option is disabled.
AI SEO for Excluded Items: Bulk AI SEO generation now skips excluded items as expected.

Update now for smarter AI behavior, more control over your data, and an improved support experience! 🚀

6.3.3

🧠 The Smarter ALT Tags Update

Release Date: August 21, 2025

🛠️ Fixes & Improvements

Reliable ALT Tag Replacement: The replacer module now ensures AI-generated ALT tags are updated correctly in all scenarios.
Cache Purge for Visibility: Automatically clears the cache after ALT tag replacement, ensuring changes show up even when object caching is enabled.
AI Settings Limits: Added max values for AI context and output fields to prevent excessive input and ensure consistent results.
UI & Wording Tweaks: Minor text and layout improvements on the settings and bulk processing pages for a cleaner experience.

Update now for smoother AI integration and more accurate image SEO handling! 🚀

6.3.2

🧠 The AI SEO Compatibility Update

Release Date: August 20, 2025

🛠️ Fixes & Improvements

Yoast SEO + Classic Editor Fix: Resolved a JavaScript error that occurred when using Yoast SEO alongside the Classic Editor.
Improved AI Data Layout: The display of AI-generated image SEO data in the Media Library has been refined for better clarity and usability.
Accurate Undo Function: Undoing AI-generated data from the Media Library popup now correctly reverts all related fields.

Update now for a smoother, more reliable SEO and editing experience! 🚀

6.3.1

🔥 The Quick Fix Update

Release Date: August 19, 2025

🛠️ Fixes & Improvements

Draft Content Preservation: AI Image SEO data generation now respects and preserves content from draft posts.
Cleaner Media Library Display: ShortPixel info is now shown only in the designated column, so no more unexpected placements.
Classic Editor Compatibility: Resolved JavaScript errors appearing in the post editor when using the Classic Editor.

A focused hotfix to ensure a smoother experience after the latest major release. Update now! 🚀

6.3.0

✨ The AI Image SEO Update

Release Date: August 18, 2025

🌟 New Features

Faster AI Model: We’ve upgraded to a better, faster AI model for generating image SEO data more accurately and efficiently.
Expanded SEO Tags: In addition to ALT tags, you can now automatically generate image captions and descriptions to enhance SEO and accessibility.
Auto-Generate on Upload: Image SEO data can now be generated automatically for newly uploaded images.
Bulk SEO Generation: Easily generate image SEO data in bulk, perfect for optimizing existing media libraries.
Language Selection: Choose the language used for image SEO generation directly from the plugin settings.

🛠️ Fixes & Improvements

Cache-Control Headers: WebP and AVIF images now include cache-control headers when delivered via .htaccess, improving cache behavior.
Thumbnail Handling: If a main image in a special format (like BMP/TIFF) is excluded from optimization, its JPG thumbnails are no longer excluded incorrectly.
WooCommerce SVG Fix: Fixed an issue where certain SVG icons for payment methods weren’t correctly replaced with CDN links on the WooCommerce cart.

Update now to take full advantage of smarter image SEO with AI and better compatibility across your site! 🚀

6.2.2

🧠 The Smart Media Update

Release Date: July 29, 2025

⚙️ Improvements

Enhanced REST API Support: Two new parameters added to the WordPress REST API for media items — source_url_webp and source_url_avif — making it easier to access next-gen image formats programmatically.
Media Library Filter: Introduced a new filter to hide the ShortPixel box from specific areas in the Media Library — perfect for a cleaner UI when needed.

🛠️ Fixes

404 Page Styling: Fixed an issue where CSS was broken on 404 pages when CDN delivery was enabled.
Large PNG Restore Fix: Resolved errors that occurred when restoring backups of large PNGs with scaled versions generated by WordPress.
Improved CDN Replacement: Images using data-srcset are now correctly replaced with CDN links when delivery is enabled.
SmartCropping Upload Issue: Fixed a bug where SmartCropping didn’t work correctly when automatic optimization on upload was turned off.
Queue Stability: Added a safeguard for rare cases involving old items in the processing queue that could trigger errors.

Update now for better REST API support, improved CDN handling, and a smoother media optimization experience! 🚀

6.2.1

🚀 The CDN & AI Control Update

Release Date: May 27, 2025

⚙️ Improvements

AI Feature Control: Added a filter to easily disable AI-powered features if needed.

CDN Delivery Enhancements:
* Now supports background images inside inline style blocks.
* Delivers inline SVGs through the CDN for consistent asset performance.
* Fallback for Missing WebP/AVIF: If WebP or AVIF images aren’t generated locally, they’ll now be created on-the-fly and served directly from the CDN.
* Broken Image Protection: Added checks to ensure the CDN doesn’t store or deliver broken images.

Improved Timestamp Handling: Timestamps are now added whenever images are sent for optimization, helping prevent unwanted caching.
PNG Conversion via ImageMagick: Added fallback support for PNG conversion using ImageMagick when the GD extension isn’t available.
Punctuation Tweak for AI Texts: AI-generated alternative texts now end with a trailing dot for readability (can be disabled via filter).

🛠️ Fixes

CDN Delivery:
* Fixed multiple edge cases where image URLs with single/double quotes were not parsed correctly.
* Corrected issues with relative paths not resolving to the proper CDN URL.
* Resolved an issue where CDN links were accidentally duplicated in specific situations.

Settings Import: Fixed import functionality for older PHP versions.
WebP/AVIF Count Fix: Image counts in bulk processing now display correctly again.
S3 Uploads Compatibility: Fixed an error triggered by a missing method when using the S3 Uploads plugin (thanks @matthewgrzegorczyk! 🙌).
WP-CLI Message Bug: Corrected a misleading WP-CLI message shown when thumbnails were unwritable but main images were optimized.
Custom Media Folder Fix: Resolved errors in the folders list when performing specific actions.

🌍 Language Updates

Added 2 new strings and updated 2, to enhance global translation support.

Update now to take full advantage of smarter CDN handling, more control over AI features, and improved compatibility across the board! 🚀

6.2.0

🚀 The Power Tools Update

Release Date: May 8, 2025

🌟 New Features

Smart WebP Compression: ShortPixel now compresses your existing WebP images to save even more space without sacrificing quality.
AI-Powered Image Captioning (BETA): Automatically generate meaningful “alternative text(ALT)” for your images using our AI model—great for SEO and accessibility!
Global CDN for CSS & JS: Your CSS, JS, and even background images can now be served via ShortPixel’s global CDN for faster page loads.
CDN Cache Purge Controls: New buttons to purge cached CSS, JS, or the entire CDN cache with one click—right from your dashboard.
Save & Restore Settings: Export and import all settings effortlessly — ideal for agencies managing multiple sites.

⚙️ Improvements

Cross-Tab Sync: Optimizations done in multiple browser tabs now stay in sync using browser broadcasting.
Automatic Association to ShortPixel Account: Your site domain is now automatically associated to your ShortPixel account when enabling CDN delivery.
CDN Domain Validation: Prevent misconfigurations with smart validation of your CDN domain format.
Cleaner Admin Bar: The ShortPixel icon is now hidden when restoring items to keep your admin interface tidy.
CDN Bypass Option: Append ?PageSpeed=off to disable CDN replacement for debugging or testing.
WebP Limit Handling: Files that exceed WebP conversion limits are now properly managed to avoid errors.

🛠️ Fixes

Lossless Labeling Bug: Fixed an issue where images were incorrectly marked as «Lossless» if the main image …

Great help and easy to consult

Perfect and quick tool

Maybe underrated, but still great 🙂

Simple, Efficient and easy to use

Best image optimization plugin I’ve used

A Great Tool for Image Optimization