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Automatically convert images to WebP, image

Automatically convert images to WebP

Allows you to automatically convert uploaded images to WebP format and perform manual conversion of already uploaded images.
Please enter a valid addres(es) of the shop where you are going to use the add-on.
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Automatically convert images to WebP, image
Automatically convert images to WebP, image , 2 image
Automatically convert images to WebP, image , 3 image
Automatically convert images to WebP, image , 4 image

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Automatic Image Conversion to WebP

The add-on creates WebP versions when new images are uploaded and helps convert images already stored in the shop. When a WebP copy exists and the browser supports the format, the storefront uses it for source images and thumbnails.

What it is for

  • Reduce image weight on the storefront and improve loading speed.
  • Create WebP copies for new images without manual preparation.
  • Process the shop’s existing images in one bulk operation.

Key features

  • Automatic conversion when images are uploaded.
  • Selectable WebP quality from 10 to 100.
  • Bulk conversion of source images and thumbnails from the admin panel.
  • Use of WebP copies on the storefront when the browser supports the format.
  • Support for uploading WebP files through the standard CS-Cart image flow.

How it works

  1. With automatic conversion enabled, the add-on creates a WebP copy after an image is saved.
  2. WebP copies are also created for thumbnails.
  3. A separate bulk operation is available for previously uploaded images; logos are not processed by it.
  4. When the storefront is opened, the add-on uses an existing WebP copy if the browser reports WebP support.

Have questions about the add-on?

Write to us.


Product:
  • Store Builder
  • Store Builder Ultimate
  • Multi-Vendor
  • Multi-Vendor Plus
  • Multi-Vendor Ultimate
Recipient:
  • Owners
  • Vendors
Development
:
  • Backend
Localization:
  • English
  • Русский
Compatible versions:
  • 4.20
  • 4.19.X
  • 4.18.X
  • 4.17.X
  • 4.16.X
  • 4.15.X
  • 4.14.X
  • 4.13.X
  • 4.12.X

Instructions for Automatic Image Conversion to WebP

What the add-on does

The add-on creates WebP copies of new images and thumbnails when conversion on upload is enabled. It can also process images already stored in the shop in bulk. When a WebP copy exists, the storefront serves it to browsers that support the format.

Where to find the add-on

The settings are available in the «Automatic Image Conversion to WebP» add-on card: Add-ons → Manage add-ons → Automatic Image Conversion to WebP → Settings.

The bulk operation is available from Add-ons → Convert all images to WebP.

Configure conversion on upload

  1. Enable Convert to WebP on upload to process new images automatically.
  2. Select Quality from 10 to 100. A higher value usually keeps more detail but produces a larger file.
  3. Save the settings and upload a new product image or an image for another entity.

The web server must have write access to the images/ directory. If a WebP file cannot be created, the add-on displays an error notification.

Bulk conversion of existing images

Create a backup of the shop files and database before starting. The operation creates WebP copies for linked images and their thumbnails; logos are skipped.

  1. Open Add-ons → Convert all images to WebP.
  2. Review the warning and make sure the backup is available.
  3. Click Convert all images to WebP and wait for the completion notification.

How to check the result

  1. Upload a new image with automatic conversion enabled, or complete the bulk operation.
  2. Open a product page or another storefront page in a browser that supports WebP.
  3. Use the browser developer tools to confirm that the requested image file has the .webp extension.
  4. Check several product cards and thumbnails, especially after a bulk conversion.

If WebP is not used

  • Check that conversion on upload is enabled.
  • Check write permissions for the images/ directory.
  • Make sure PHP GD on the server supports WebP processing.
  • Check the storefront in a browser that supports WebP.

Changelog

v1.53.4 from 10.08.2026

[*] Updated the add-on code, templates, and integration files.

[*] Updated the add-on description, instructions, changelog, and logo.

v1.53.3 from 2025-04-04

[*] The addon code was changed.

v1.53.2 from 2024-10-18

[*] The addon was standardized.

[*] The warning text before the full conversion action was updated.

v1.53.1 from 2023-09-28

[!] Fixed the “Convert to WEBP on upload” setting.

v1.53.0 from 2023-09-07

[+] Added support for the “Watermarks” addon.

v1.52.3 from 2023-08-07

[*] Short ` [!] Fixed using images in the old format when switching a variation on the product page.

v1.52.2 from 2023-06-26

[!] The addon was updated to current CS-Cart requirements.

v1.52.1 from 2023-05-12

[*] The licensing mechanism was updated.

[+] New features.

[-] Removed.

[*] Changes and improvements.

[!] Fixes.

Legend:

[+] Added

[-] Removed

[*] Changed

[!] Bug fixed

Reviews
Anonymous
Модуль работает хорошо, было бы не плохо добавить в настройках функцию ручного выбора конвертации при загрузке картинки к товару.
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