WP Plugin Webp Converter For Media
Test report

Converter for Media - Optimize images | Convert WebP & AVIF

Introduction - Comprehensive image optimization for WordPress

Webp Converter For Media by matt plugins - Optimize images by convert WebP & AVIF, first published on 2019-06-16, is an outstanding WordPress plugin that revolutionizes image optimization to boost website performance. With over 500,000+ active installations the plugin not only offers conversion of images to WebP and AVIF formats, but is especially known for high compression rates without quality loss, resulting in a significant reduction in page weight. Unique is the fully automatic image optimization that covers both existing and newly uploaded images, providing a continuous advantage for page speed and thus for SEO rankings. The target audience mainly includes users of modern browsers, of which over 90% support WebP The excellent ratings with an average score of 4.9 out of 5 stars from 1,058 reviews in the WordPress Plugin Store underline user satisfaction. The following section goes into the specific features that enable these benefits.

"The plugin delivers what we've been promised since WordPress 6.0: A decent way to replace JPEG and PNG with WebP images to make our sites faster."

Features - Automatic and versatile image conversion

The WordPress plugin Webp Converter For Media impresses with its automated image optimization that reliably converts both existing and newly uploaded images. A notable feature not mentioned in the first paragraph is support for additional directories. This function allows optimization of images not only in the media library but also in directories like /plugins and /themes which requires the Pro version for this extended feature.

"The ability to optimize images in directories outside the media library sets this plugin apart from many other solutions."

Free Features - Extensive functionality at no cost

• Image optimization - Images are automatically converted to the WebP format, which significantly reduces file size without quality loss.
• Automatic conversion - New images are converted immediately after uploading to the media library.
• Original image safety - Original images remain untouched and safely stored.
• WebP support - The plugin detects browsers that support WebP and serves appropriate images.
• No redirects - Optimized image delivery without additional load time due to redirects.
• Compatibility with HTML tags - Works with common HTML elements for displaying images.
• Data reduction - Reduced data transfer when loading images, which decreases load times.
• Clean removal - Removal of all plugin traces upon uninstallation.

Pro Features - Advanced optimization options

• AVIF support - Enables conversion to the AVIF format for even better compression and image quality.
• Support for additional directories - Optimization of images in other directories such as /plugins and /themes.
• Access to advanced features - Additional image optimization options for improved performance.

"The Pro version is especially valuable for sites with extensive image archives in various directories."

License & value for money - Balance between cost-effectiveness and functionality

The Webp Converter For Media plugin offers a free version that already provides a variety of important features. For users who have higher demands on image optimization and want to use the Pro features, a paid version is available. The Pro version is particularly appreciated by users with commercial websites and large image collections. The value for money is perceived as reasonable, especially when the advanced features are used to further optimize load times. Some users find the cost relatively high, but the effective image compression and resulting performance gains are often highlighted as positive.

"Wonderful plugin, I paid for the Pro version and it's worth the money."

Technical details - A look at the inner workings

The WordPress plugin Webp Converter For Media is characterized by a well-thought-out technical architecture that enables efficient conversion of images to WebP and AVIF formats. At the file system level it uses custom PHP routines to switch the MIME type dynamically while the image URL remains unchanged. This technique minimizes potential integration issues with caching solutions and other WordPress plugins. Developers can use an alternative loading path via PHP if the standard rewrite rules are blocked, which is controlled by specific .htaccess settings. It also supports image conversion from directories like /plugins and /themes, which can be extended via hooks and filters. The integration of shortcodes and APIs gives developers additional freedom to create advanced implementations.

System requirements - Minimum requirements for smooth operation

To use the Webp Converter For Media plugin, certain system requirements are necessary. Minimum system requirements include PHP version 7.1 and WordPress version 4.9. The plugin is compatible and tested up to WordPress version 5.8. The current plugin version is 6.3.0, and it was last updated on 2025-10. These requirements ensure that the plugin works efficiently on both older, stable systems and modern setups, with broad compatibility to note.

"It's important to check the system requirements before installation to ensure smooth functionality."

Quality - Efficient conversion without quality loss

The quality of the Webp Converter For Media plugin is characterized mainly by excellent image optimization that occurs without noticeable quality loss. Converting images to WebP and AVIF not only significantly reduces file size but also preserves the visual integrity of the images. Image performance is greatly improved, resulting in fast load times and an optimized user experience. Furthermore, automatic conversion contributes to efficiency as it operates without manual intervention and leaves the original image files untouched, ensuring data security. The ability to convert images from other directories like /plugins and /themes increases the plugin's versatility immensely. In particular, the Pro version convinces with various additional features that are of great benefit for websites with extensive media archives.

"It works very well, converts to WebP without losing quality. Greatly sped up my site."

Support - Experiences with the support service

The support for the Webp Converter For Media plugin is consistently rated positively. Users praise the quick and effective assistance from the developer, which is highlighted multiple times in reviews. For contacts that are primarily via the support forum in the WordPress Plugin Store or directly via the developer page when reported, users often receive a solution to their problems the same day. The personal and committed help from the developer team is frequently mentioned. Still, there are individual voices pointing to inadequate help, especially for more specialized issues or during uninstallation. The recommendation to try the PRO version may imply that additional support is primarily available to paying users.

"The team's support is outstanding and really fast. Thanks, Mateusz, for your great work."

Rating - user opinions and experiences

The plugin Webp Converter For Media has received impressive ratings in the WordPress plugin store, with an average of 4.9 out of 5 stars from a total of 1,058 reviews. This high rating reflects users' largely positive experience with the plugin's functionality and effectiveness. Many specifically praise the seamless integration and noticeable improvement in website load times.

A frequently mentioned praise is the automatic image optimization, which provides users significant relief in maintaining their websites. On the positive side, the following quote has often been cited as representative:

"It works very well, converts to WebP without losing quality. Has significantly sped up my site."

But there are also critical voices reporting negative experiences. Not all users were satisfied with the plugin's performance. One critical feedback highlights problems caused by the plugin:

"Think a hundred times before you install this plugin. Things only got worse on my site."

Despite individual negative experiences, the vast majority of reviews remain very positive. Users appreciate the plugin's reliable performance, which is evident in another praising comment:

"The plugin delivers what we've been promised since WordPress 6.0: a decent way to replace JPEG and PNG with WebP images to make our websites faster."

In summary, the Webp Converter For Media is perceived by most users as very useful and effective despite occasional criticism.

Criticism - potentials and problem areas of the plugin

Criticism of the Webp Converter For Media plugin covers several aspects that users have pointed out in their experiences. A commonly mentioned issue is the lack of communication and clarity from the developer regarding some plugin functions, especially why conversion to the WebP format occasionally doesn't work. Users also complain about the missing warning about the consequences of disabling the plugin, which can lead to unexpected problems.

It is also reported that the plugin sometimes blocks the media library or increases the number of files, which can lead to unwanted effects on the website. These problems seem to occur particularly with specific server configurations, such as blocked htaccess rewrites, which requires technical support from the hosting provider. Another critical feedback concerns the removal function of already converted images during uninstallation, which is considered impractical.

Users' suggestions for improvement propose that the plugin should better communicate which features are exclusive to the Pro version and how automatic compression could be optimized.

"I would like to see some improvements here."

Conclusion - assessment of functionality and popularity

The Webp Converter For Media plugin offers a comprehensive solution for image optimization on WordPress websites. Developed by Mateusz Gbiorczyk, it impresses with automation and support for modern image formats that can significantly improve load times. A large number of satisfied users and the high ratings underscore the plugin's efficiency and user-friendliness. Nevertheless, there are points of criticism, especially regarding deactivation and removal of the plugin, and the need for more transparent communication about Pro features. Despite these challenges, it remains a preferred choice for many WordPress users who want to optimize their website performance due to its comprehensive features and flexibility.