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 of the excess space.
  • 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 (coming soon): 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. Uncheck Skip regenerating existing correctly sized thumbnails (faster) option.
  4. Finally, click Regenerate Thumbnails For All N Attachments button.

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.

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.


2021 年 7 月 24 日
Amazing how easy this was and the result is fantastic! I have struggled so many times to get nice product images with the correct size. 65 products took around one minute to adjust! (including building the new thumbnails) Impressed!
2021 年 6 月 28 日
Plugin with UNIQUE features helping Woocommerce's users to fix the mess of multiple image ratio. I switched to Pro after 10 minutes once I saw it working good. On last update(s) they fixed a small issue with Flatsome theme, so now I'm fully satisfied with the plugin itself and with the support.
2021 年 6 月 11 日
Was struggling for days with how to resize my images in my shop and on my home page. I purchased this plugin and was disappointed at first because I couldn't get it to work. I contacted the developers and received a speedy response. It turned out to be the theme overriding the plugin. The developers logged into my site and sorted it all out for me. I now have perfectly sized images – yippee! Thank you for this fabulous plugin!
2021 年 5 月 28 日
I've tried a number of different regen/resize plugins for sorting out the maddening woocommerce irregular related products images. None of them worked until I tried this one. I did just need to use the free version but I'm happy to say it worked for me. Great job developer!
2021 年 5 月 9 日
- Pro version skipped about half the files, and crashed the shop. Tried with GUI and WP-CLI tool. - Gave it 1 star as a non working plugin and unresponsive support. I was wrong. They replied 1 hour later but email was in junk folder, and I never saw it. - Support is responsive and on point. Fixed my issue very quickly, after I found their email. These guys rock and totally worth it!!! Nabil is a rock star and I underestimated him at first.
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以下人員參與了開源軟體〈Smart Image Resize – Make WooCommerce Images the Same Size〉的開發相關工作。




  • 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