License: GPLv2 or later WordPress plugin to enable WebP image uploads.

tuxlog

wp-webp Plugin

The wp-webp Plugin gives your site the ability to show images in WebP format using…

GrandPlugins

AVIF Uploader

AVIF support plugin aims to support avif images in WordPress by overcome wp issues and limits regarding uploading, displaying and generating avif and  …

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This WordPress Plugin for WebP image uploads enabled WebP image uploads into the media library.
It will also add a class to the body tag for CSS selectors. This is helpful for setting background images.
Example:
selector {
background: url(‘images/example.jpg’); 
}
body.supports-webp #selector { 
 background: url(‘images/example.webp’); 
}
Use the function webpSupported() in template files to conditionally show WebP images.
Example: 
if (webpSupported()) : 
 WebP image here 
 else: 
 Image with other fallback format here 
 endif;
Major features in WP Enable WebP include:
<ul>
<li>Enabling WebP Image uploads into the media library. </li>
<li>Browser detection that adds a class to the body tag indicating WebP is supported by the browser.</li>
<li>Helper function to use in theme template files to check if the browser supports WebP image format.</li>
</ul>

WP Enable WebP

Works fine for uploading webp images. I set one up as a featured image, it loads fine on a desktop, but for mobile users also loads a full-size image. Does not scale it down like jpeg formats...

Would be great if the developer could continue his work on it.

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