Osclass Themes and Osclass Plugins

WebP Images Generator Plugin

35 .99€
  • Details Product details
  • Reviews 5
  • Changelog
  • Support
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Reduce your server cost and increase scalability with S3 Image Cloud Storage Plugin!

Would you like to optimize images on your classifieds and use image format of 21st century? WebP Generator Plugin for Osclass classifieds helps you to optimize size of your images, improve loading speed of your site for customers and defacto improves user experience.

WebP Images Generator for Osclass

WebP Images Plugin simply takes every listing image on your classifieds and create it's ".webp" version.

This conversion works for JPG, JPEG, PNG and GIF listing images. Admin can select:

  • Quality of WebP images (0 - 100)
  • Engine used to generate WebP images (GD library by default - imagewebp function must exists, or ImageMagick if available)
  • Type of images for those WebP format will be generated (thumbnail, preview, normal sizes)

Installation and setup

Initial installation is super easy. Once you've installed plugin, go to Configuration page of plugin, select quality, types of images, ... and save.

  • New listings - WebP images are automatically generated on publish
  • Existing listings - go to Settings > Media and simply regenerate your thumbnails. As this may be extensive process on large classifieds, we recommend to use latest version of Osclass that allows sequential images regeneration.

Plugin also allows to modify image URLs without need to modify single line of code. You can automatically replace:

  • thumbnail images
  • preview images
  • normal images

How it works? Plugin use "filter" for resource URLs and change extension. Using only WebP images in theory may cause problems to customers using legacy/old browsers.

Advanced integration for legacy browsers

In order to provide full support to legacy browsers, plugin contains functions those generates new HTML tags using "picture" and "srcset".

<?php echo wbp_thumbnail_resource_tag()); ?>

Alternativelly, it is possible to use only functions to get ".webp" image url:

<?php echo wbp_replace_extension($link); ?>


What is WebP image and its benefits

WebP is a modern image format that provides superior lossless and lossy compression for images on the web. Using WebP, webmasters and web developers can create smaller, richer images that make the web faster.

WebP lossless images are 26% smaller in size compared to PNGs. WebP lossy images are 25-34% smaller than comparable JPEG images at equivalent SSIM quality index.

Lossless WebP supports transparency (also known as alpha channel) at a cost of just 22% additional bytes. For cases when lossy RGB compression is acceptable, lossy WebP also supports transparency, typically providing 3× smaller file sizes compared to PNG.


Plugin is compatible with S3 Cloud Image Storage Plugin and uploads webp image versions to cloud bucket as well.


Note: If you are looking for legacy browsers setup, we recommend this plugin to advanced users only.

Note: Plugin require PHP 7.2 or higher and function imagewebp must exitst on your installation. Check it with your hosting provider before purchase!

For theme integration questions, please use support forums.

Product features and functionality

Basic documentation included
Require theme modifications
Require PHP skills
Add front office functionality
Use hooks for theme integration
Coding skills recommended
Recommended for advanced osclass users
No dependency on 3rd party services
Osclass Seller's picture
MB Themes seller

Product support includes

12 months access to support and latest updates
Support can be extended anytime for 35% of base price (+12 months)
Availability of seller to answer questions
Answer technical queries about product features
Assistance with reported bugs or issues
Help with installation in case there is problem
Product in English language (other locales provided by community)

Support does not include

Customization service, custom work or feature requests
Support on free/gratis plugins delivered with premium themes
Installation service
Translation and localization services

Seller support quality and speed

Seller updated this product 6 times
Seller rating is 4.7 of 5 - Excellent (503 reviews)
Respond usually in 1 hour 20 mins
Member since 2017
Spoken languages:
Osclass Support (cz)
Osclass Support (sk)
Osclass Support (en)

Changelog - Product updates history

1.1.2 Fixed issues when using plugin with S3 service (or external/remote image storage)
1.1.1 Minor improvements with generator and missing webp images.
1.1.0 Major update: Redesigned conversion functions and isolated them to be able to use webp conversion on other places as well.
Created 2 new functions for those that would like to get webp on other images:
- Covert standard image to WEBP variant - wbp_image_to_webp($source_img_path, $target_img_path = "").
- Get WEBP url of standard image. If does not exists, generate WEBP image - wbp_get_webp_img($source_url, $generate_if_missing = true, $generate_force = false).
1.0.2 Fixed bug that could cause that ImageMagick library was not available in plugin, but actually it should be available.
1.0.1 Fixed possible issues those might be caused by Imagick library
1.0.0 Initial plugin release
View all products updates

Product rating: 5.0 - Excellent, based on 5 reviews

Working as expected by Ivan on 15. Apr 2022

5.0 - Excellent
Great plugin! Big tkx for our crazzy lovely developer of osclass ) Good staff that new core can regenerate photos as much as you want ! smile I was able to regenerate 40.000 images, it took time, but anyhow with success ! ) Thanks again and good luck!
Osclass Seller's picture

MB Themes response:

Glad to hear plugin is helpful to you! Good luck wink

great plugin by Michael on 3. Dec 2021

5.0 - Excellent
great plugin, improves page loading, thanks
Osclass Seller's picture

MB Themes response:

Thanks for review, glad ro hear your classifieds is faster smile

Speeds up your website by Marc Windey on 17. Nov 2021

5.0 - Excellent
This plugin speeds up loading time and leaves competitors far behind... Easy to install and configure. Great work!
Osclass Seller's picture

MB Themes response:

Thank you Marc, appreciate your feedback and support!

All perfect by Mario on 12. Nov 2021

5.0 - Excellent
All perfect, how could i convert blog images?
Osclass Seller's picture

MB Themes response:

Hi Mario, blog plugin content is currently not covered by this plugin.

A very useful plugin by salesnsoft on 8. Nov 2021

5.0 - Excellent
It speeds up full page loading and image compression and conversion to a modern web format is fast. Another good job by OsclassPoint. smile Thanks a lot!
Osclass Seller's picture

MB Themes response:

Thanks so much for your feedback, optimization should be topic #1 smile
Single Domain License
5.0 - Excellent Based on 5 reviews
Created by best developers
Regular updates and bug fixes
Premium support services
Top rated product
Add to cart Contact seller
Price is in Euros
Osclass Seller's picture
MB Themes
Seller has 10+ years experience with osclass, has developed more than 40 osclass products with overall rating 4.7

Product technical details

165 orders
6 updates
Product version: 1.1.2
Last update: 1 year ago
Osclass support: 3.0+, 4.0+, 8.0+ Download osclass
Product rating: 5 of 5 - Excellent
Published on: 5. Nov 2021
Folder name: webp_images