Media WebP Converter

Par Subrata Sarkar

Description

Media WebP Converter helps optimize your WordPress site performance by converting media library images to the modern, lightweight WebP format.

Features:

Bulk convert existing media images to WebP format
Choose to overwrite original images or create new attachments
Set desired output image quality
Option to run conversions selectively
Simple UI integration in the WordPress dashboard

Improve loading speeds and reduce image sizes without compromising on visual quality.

Credits

Developed by Subrata Sarkar

Installation

Upload the plugin files to the /wp-content/plugins/wp-image-to-webp-converter directory, or install the plugin through the WordPress plugin screen directly.
Activate the plugin through the ‘Plugins’ screen in WordPress.
Go to Media > Convert to WebP to configure and run conversions.

FAQ

Will this overwrite my original images?: Only if you choose the overwrite option. Otherwise, new WebP images are created as separate attachments.
Does it support all image sizes?: Yes, all registered image sizes (e.g., thumbnail, medium, large, custom sizes) are converted.
Can I undo the conversion?: If you chose to overwrite originals, the change is permanent. If new attachments were created, the original images remain intact.

Avis

Rahul Basu 25 août 2025

I tested it on a high resolution JPEG and it compressed ~2.5 MB down to 45 KB with minimal visible quality loss at a quality setting of 65. The interface is simple and automatic conversion on upload and page load works smoothly. One point to note is that it also reduced the image resolution so adding options to preserve dimensions and support AVIF format would make it even more versatile. Overall it is a genuinely helpful tool for image optimization and I appreciate the thought and effort put into making the process straightforward.

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