Jahidul

IMJOLWP Image Optimizer is a lightweight and performance-focused WordPress plugin that automatically converts uploaded images (JPEG, PNG, GIF) into WebP format while maintaining the original image file names and URLs. This ensures full compatibility across your theme and plugins, while significantly improving your site’s load time and performance.
Key Benefits:
<ul>
<li>Faster website load times due to smaller image file sizes.</li>
<li>No changes to image URLs—maintains backward compatibility.</li>
<li>Server-side conversion using either Imagick or GD, depending on availability.</li>
<li>Easy-to-use settings panel for WebP quality and metadata stripping.</li>
<li>Ideal for blogs, eCommerce, portfolios, and image-heavy sites.</li>
</ul>
Features:
<ul>
<li>🔄 Automatic conversion of JPEG, PNG, and GIF files to WebP upon upload</li>
<li>⚙️ Customizable WebP image quality (0–100)</li>
<li>✂️ Option to remove image metadata for further compression</li>
<li>🧠 Seamless URL preservation (images retain their original URLs)</li>
<li>🔄 Fallback mechanism between Imagick and GD image libraries</li>
</ul>

IMJOLWP Image Optimizer

IMJOLWP Image Optimizer automatically converts uploaded images (JPG, PNG, GIF) to WebP format without changing the original image URL, improving page  …

Marko Heijnen

CodeKitchen

This plugin extend the power WordPress already have when it comes to image editing.
It currently focuses on the API side to give developers great tools to manipulate specific image sizes. 
You can do this by calling Improved_Image_Editor::register_image_size_info(). Here you can specify the following arguments: 
– quality 
– zoom 
– filters (work in progress)
It also includes the functionality of the following plugins I build: 
– Gmagick 
– Improved GD Image Editor 
– WP_Image (will be included soon)
Future plans are to build a settings page so users can select the settings per image size themself. 
I also have ideas to extend the current image editor UI with options to select the focus point per image size and build auto detection of the focus point. With every feature we add the main focus will be to build a decent API for it so at certain points it could be integrated in WordPress itself.

Improved Image Editor

Adds more image edit functionality to your WordPress installatin

IMJOLWP Image Optimizer vs Improved Image Editor