Maud Royer

Every time you upload an image, Simple WebP generates a .webp version. It then alter the HTML to replace img tags with picture tags, which let the browser pick the best format.
WebP images are often smaller than original .jpeg or .png one, so can save bandwidth and load time. Most browsers support WebP nowadays. You can use <a href="https://developers.google.com/speed/pagespeed/insights/" rel="nofollow ugc">Google Pagespeed</a> tool to see the gain you would get from WebP.
You will get much faster load time, and better ranking in Google Search.
Simple WebP is very much inspired by the more complete (and complex to install) <a href="https://fr.wordpress.org/plugins/webp-express/" rel="nofollow ugc">WebP Express</a> plugin. It also use the same libraries :
<ul>
<li><a href="https://github.com/rosell-dk/webp-convert" rel="nofollow ugc">WebPConvert</a>: For converting images to webp</li>
<li><a href="https://github.com/rosell-dk/dom-util-for-webp" rel="nofollow ugc">DOM Util for WebP</a>: For the Alter HTML functionality</li>
</ul>

Simple WebP

For every image uploaded, Simple WebP creates a WebP version which is served to compatible browsers.

Subrata Sarkar

Media WebP Converter helps optimize your WordPress site performance by converting media library images to the modern, lightweight WebP format.
Features:
<ul>
<li>Bulk convert existing media images to WebP format</li>
<li>Choose to overwrite original images or create new attachments</li>
<li>Set desired output image quality</li>
<li>Option to run conversions selectively</li>
<li>Simple UI integration in the WordPress dashboard</li>
</ul>
Improve loading speeds and reduce image sizes without compromising on visual quality.
<h3>Credits</h3>
Developed by <a href="https://profiles.wordpress.org/subrataemfluence" rel="nofollow ugc">Subrata Sarkar</a>

Media WebP Converter

Converts all media images to WebP format with options to overwrite originals, control output image quality, and optionally generate new attachments.

Simple WebP vs Media WebP Converter