Smart Image Resize – Make WooCommerce Images the Same Size


Smart Image Resize Makes your store look professional with product images that are all uniform and the same size without cropping.

  • Zero-configuration.
  • No more manual image editing and photo resizing.

Lite Features

  • Resize up to 150 images.
  • Remove unwanted whitespace around image.
  • Set a custom background color to match your site design
  • Compress thumbnails for faster page load.
  • Generate only needed thumbnails and delete unused ones.
  • Choose which images to resize.

Pro Features

  • ♾ Unlimited Images: Unlimited images resizing.

  • ✈️ Convert to JPG format: Reduce image file size and boost page speed.

  • 🚀 Use WebP Images: Speed up page load by reduce image file up to 90% while still providing transparency and the same quality.

  • 🔒Insert watermark (beta): Insert logo, name, SKU, and other info on all images, attracting new potential customers through search engines, and keep images safe from unauthorized use (especially if you sell digital products or if you want to keep the copyright safe for the images you publish online such as photos, pictures, comic strips, etc.)

  • 👨‍💻 Get priority support:
    Get faster chat and email support.

Check out Smart Image Resize PRO!


Once the plugin is installed, images newly uploaded will be automatically adjusted and resized.

To change your settings, navigate to WooCommerce > Smart Image Resize.

If you have already uploaded product images to Media Library, follow these steps to regenerate thumbnails:

  1. Install Regenerate Thumbnails plugin.
  2. Navigate to Tools > Regenerate Thumbnails.
  3. Click the button Regenerate Thumbnails For All Attachments .

IMPORTANT! Make sure you purge cache if old images still showing.

To learn more, check out the documentation.


  • Before and after using the plugin.
  • Settings page.
  • Select sizes to generated.
  • Add custom background color of the new area.


  1. Upload smart-image-resize folder to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress

    Note: Make sure PHP Fileinfo extension is enabled in you server.


Does the plugin automatically resize images on upload?


How can I resize images I already added to the media library?

Follow these steps to resize existing images:

  1. Install Regenerate Thumbnails plugin.
  2. Navigate to Tools > Regenerate Thumbnails.
  3. Uncheck Skip regenerating existing correctly sized thumbnails (faster)
  4. Finally, click on Regenerate Thumbnails For All N Attachments button.

IMPORTANT! Make sure you purge cache if old images still showing.

Is the plugin compatible with WP CLI?

Yes. You can use the command wp media regenerate to regenerate thumbnails to match your settings.

Is the plugin compatible with Dokan Multivendor?


I get an error when I upload an image

Make sure PHP extension fileinfo is enabled on your server.

Still have questions?

If you can’t find the answer to your question, we may have posted it in our FAQ

How do I get support?

If you have trouble with the plugin, create a ticket on the support forum and we’ll make sure to look into it.

If you are a pro user, contact the support on the official plugin site.


January 17, 2023
Exactly what I needed, my theme forced all images as rectangles but I wanted squares and it works perfect.
October 3, 2022
EXCELLENT plugin. We had thousands of vertical wine bottle shots that needed to be resized into a square format to display perfectly in WooCommerce product pages. This plugin will automatically resize and recrop huge files into the required dimensions and aspect ratio. AND it even converts png files to jpgs. The time saving benefits are enormous and the plugin support is A+. They have a chat that helps you solve any issues immediately. We were scratching our heads wondering why our image quality was poor when it fact it was a misconfiguration on our part (note that their 10% compression rate = 90% output jpg quality). If you are hesitating buying the Pro version just do it. Well worth it. You can rest easy knowing you get immediate support via their website chat function.
August 30, 2022
I have more than 12000 pics on my woo webshop and the plugin did a wonderful job of making sure that every picture is sized the same. Using it is super simple, and it does its job fast. Can't recommend it enough. I will never go back to sizing pictures one by one. Also, I had a major difficulty (for me) with the plugin, and Nebil went out of his way to fix it immediately. All in all super happy with the plugin and the support as well.
Read all 67 reviews

Contributors & Developers

“Smart Image Resize – Make WooCommerce Images the Same Size” is open source software. The following people have contributed to this plugin.




  • Improved compatibility with new themes and plugins
  • Fixed an issue with the Trim whitespace’s border size option not working properly in GD.
  • Fixed an issue in v1.7.6 causing some plugins’ assets to not load properly.
  • Declare compatibility with WooCommerce 6.9
  • Minor bugfixes


  • Deleted the option “Use WordPress cropping” as it seems to be causing some confusion for many users. To prevent specific sizes from being resized by the plugin use the filter wp_sir_exclude_sizes to return an array of size names you want to exclude.
  • Fixed an issue with WebP files not deleted when the WebP feature is turned off.
  • Declared compatibility with WooCommerce 6.3
  • Added a work-around to fix a bug in Regenerate Thumbnails causing the latter to interfere with WPML.
  • Stability improvements

  • Fix a bug when background processing is trigged from the frontend.

  • bugfixes


  • Recheck and process skipped images in the background after the parent post is saved.
  • Replace “Resize fit mode” option with “Use WordPress cropping”.
  • Fix issue with Trimming border size limited to original image size.
  • Improve CMYK images handling
  • Format error message in WP CLI and avoid halting execution.
  • Fix an issue with CMYK profile not being converted to RGB in Imagick.
  • Use another image processor as fallback when current one doesn’t support WebP.
  • Fix an issue with default image processor when Imagick doesn’t support WebP.
  • Minor bugfixes
  • Stability improvement
  • Performance improvement.


  • Use another image processor as fallback when current one doesn’t support WebP.
  • Fix WebP Images not served in Ajax responses
  • Fix an issue with default image processor when Imagick doesn’t support WebP.


  • Add the ability to custom woocommerce default sizes.
  • Stability improvement


  • Add the ability to specify the resize fit mode for each size.
  • Stability improvement

  • Stability improvement


  • Fix color issue with some CMYK images.
  • Fix faded images in some Imagick installs.


  • Fix an issue with some themes not loading the correct image size.


  • Stability improvement


  • Fix thumbnail overwriten by WordPress when original image and thumbnail dimensions are identical
  • Fix an issue with Flatsome using full size image instead of woocommerce_single for lazy load.
  • Ignore sizes with 9999 dimension (unlimited height/width).
  • Improve WebP availability detection.


  • Use Imagick as default when available.
  • Fix Avada not serving correct thumbnails on non-WooCommerce pages.
  • Improve the user experience of the settings page.


  • Filter processed images in the media library toolbar
  • Add filter wp_sir_serve_webp_images
  • Improve Whitespace trimming tool


  • Declare compatibility with WooCommerce (v5.2)


  • Use GD extension by default to process large images.


  • Fixed an issue with some images in CMYK color.


  • Fixed an issue with PNG-JPG conversion conflict
  • Added support for WCFM plugin.
  • Declared compatibility with WooCommerce (v5.0)
  • Stability improvement


  • Added tolerance level setting to trim away colors that differ slightly from pure white.
  • Improved unwanted/old thumbnails clean up.


  • Added compatibility with WooCommerce 4.9.x
  • Stability improvement.


  • Improved bulk-resizing using Regenerate Thumbnails plugin.
  • Stability improvement.


  • Fixed a minor issue with JPG images quality when compression is set to 0%.
  • Stability improvement.

  • Fixed an issue with UTF-8 encoded file names.

  • Improved compatibility with WC product import tool.

  • Fixed an issue when uploading non-image files occured in the previous update.

  • Turned off cache busting by default.

  • Fixed WebP images not loading in some non-woocommerce pages.

  • Fixed trimming issue for some image profiles (Imagick).
  • Added an option to specify trimmed image border.


  • [Fixed] an issue with WebP images used in Open Graph image (og:image).
  • Stability improvement


  • Fixed a bug with WebP not installed on server.
  • Fixed an issue with front-end Media Library.


  • Added support for category images.
  • Ability to decide whether to resize an image being uploaded directly from the Media Library uploader.
  • Support for WooCommerce Rest API
  • Developers can use the boolean parameter _processable_image to upload requests to automatically process images.
  • Added filter wp_sir_maybe_upscale to prevent small images upscale.
  • Process image attachment with valid parent ID.
  • Fixed a tiny bug with compression only works for converted PNG-to-JPG images.
  • Fixed an issue with srcset attribute caused non-adjusted images to load.
  • Fixed an issue with trimmed images stretched when zoomed on the product page.
  • Improved support for bulk-import products.
  • Improved processing performances with Imagick.


  • Fix compatibility issue with Dokan vendor upload interface.
  • Performances improvement.


  • Added compatibility with WP 5.4
  • Added support for WP Smush
  • Stability improvement.


  • Stability improvement.


  • Fix a minor issue with image parent post type detection.
  • Added a new filter wp_sir_regeneratable_post_status to change regeneratable product status. Default: publish


  • Regenerate thumbnails speed improvement.


  • Stability improvement


  • fixed a minor issue with settings page.


  • Added thumbnails regeneration steps under “Regenerate Thumbnails” tab.


  • Fixed a minor bug in Regenerate Thumbnails tool.


  • Added a built-in tool to regenerate thumbnails.
  • woocommerce_single size is now selected by default.
  • Stability improvement.


  • Fix srcset images not loaded when WebP is enabled.


  • Set GD driver as default.
  • Stability improvement.


  • Prevent black background when converting transparent PNG to JPG.
  • Fixed random issue that causes WebP images fail to load.
  • Stability improvement.


  • Added settings page link under Installed Plugins.


  • Added Whitespace Trimming feature.
  • Various improvements.


  • Fixed crash when Fileinfo extension is disabled.


  • Added support for Jetpack.


  • Fixed conflict with some plugins.


  • Prevent dynamic resize in WooCommerce.


  • Handle WebP not installed.


  • Fixed mbstring polyfill conflict with WP mb_strlen function


  • Added polyfill for PHP mbstring extension


  • Force square image when height is set to auto.


  • Fixed empty sizes list


  • Fixed empty sizes list


  • Added settings improvements
  • Added processed images notice.


  • Added fileinfo and PHP version notices
  • Improved settings page experience.


  • Introducing Smart Image Resize Pro features
  • Various improvements


  • Fixed some images not resized correctly.


  • Minor bugfix


  • Errors messages now are displayed in media uploader. This will help debug occured problems while resizing.


  • The PHP Fileinfo extension is required. Now you can see notice when it isn’t enabled.


  • Fixed bug that prevents upload of non-image files to the media library.


  • Skip woocommerce_single resize


  • Stability improvement


  • Bugfix


  • Bugfix


  • Removed deprecated option.


  • Small images resize improvement.


Improve stability


  • Add ability to add custom color in settings.
  • Fixbug for some PHP versions.


  • Public Release