Nxtapps

Compressify helps speed up WordPress sites by optimizing images on upload, bulk compressing media library files, and converting supported images to WebP. It works locally with WordPress image editors, so you can reduce image size and improve performance without relying on external compression services.
<h4>Features</h4>
<ul>
<li>Automatic compression during upload.</li>
<li>Bulk compression for existing media library images.</li>
<li>Standard vs. High Compression preset.</li>
<li>Optional WebP conversion for supported uploads.</li>
</ul>

Compressify

Optimize images on upload, bulk compress media library files, and convert JPEG, PNG, and WebP images for faster WordPress sites.

sonirico

rdelblanco

This plugin connects to imagus API and optimize images in jpeg/png/gif/avif/webp/tiff formats. 
In “Settings” => “Imagus” you can customize the plugin. The options are:
<ul>
<li>Quality percentage: The % of compression. Imagus uses lossy compression algorithm, so the lower compression, the lower image quality. 
You might use a percentage quality that prevents a higher pixelation. 70% should be enough.</li>
<li>Automatic compression: Imagus optimizes all the images you upload automatically.</li>
<li>Leave original copies in media folder: if you wanna preserve the original image before imagus acts, enable this option. 
You can replace the compressed image with the original if you aren’t satisfied with the compression result.</li>
<li>Enable modal customized options window: Activate this option if you wanna change the default settings in the media gallery. 
Only available if you have the “Automatic compression” disabled (otherwhise, it has no sense!).</li>
</ul>
You can compress individually or raw in the media library menu (the “Automatic compression” option must be disabled). Just press 
the “Imagus compression” button (the button shows in list mode of the media gallery page) or select that raw action after select a images group on the list.

Imagus image optimizer

Ultimate plugin to optimize media images and recover original backup feature.

Compressify vs Imagus image optimizer