RobertWP

RW WebP Converter Lite is a lightweight and easy-to-use WordPress plugin that helps you optimize images by converting JPG and PNG files into the modern WebP format.
The plugin allows you to bulk convert existing images in the media library and automatically convert newly uploaded images to WebP. By reducing image file size while maintaining quality, RW WebP Converter Lite helps improve website loading speed and overall performance.
All features are optional and can be configured from the plugin settings page.
Features: 
* Bulk convert existing JPG and PNG images in the media library to WebP 
* Automatically convert newly uploaded images to WebP 
* Enable or disable automatic conversion via settings 
* Lightweight and fast, with no unnecessary features 
* Compatible with the WordPress media library
Documentation: 
<a href="https://docs.robertwp.com/rw-webp-converter-lite/" rel="nofollow ugc">Plugin Documentation</a> 
Includes setup and usage instructions for this plugin.
<h3>Source Code</h3>
This plugin includes minified JavaScript and CSS files for performance 
and distribution purposes.
The original, human-readable source code for these files is publicly 
available and maintained on GitHub:
https://github.com/robert2021south/rw-webp-converter-lite
The following files are minified in the plugin package: 
– assets/js/rwwcl-admin-bulk.min.js 
– assets/js/rwwcl-admin-deactivate.min.js 
– assets/js/rwwcl-admin-feedback.min.js 
– assets/css/rwwcl-admin-style.min.css 
– assets/css/rwwcl-admin-deactivate-modal.min.css
<h3>Privacy</h3>
This plugin respects your privacy. Any data collected (such as optional feedback or deactivation reasons) is handled transparently and securely.
Feedback Data: When you use the feedback form in the About tab, we collect your rating, feedback message, and optionally your email address. This helps us understand user needs and improve the plugin. 
Deactivation Data: When you uninstall the plugin, you may optionally provide a reason for leaving. This helps us identify areas for improvement.
All data, including any optional email address, is transmitted securely (via TLS/HTTPS) and retained only as long as necessary. For example, feedback data is retained for a maximum of 12 months to help us improve the plugin.
We do not collect any personal data, site URLs, or user-identifiable information without your explicit consent. Email addresses are only collected when voluntarily provided and are never used for marketing.
For complete details on what data is collected, how it is stored (including hashing and encryption for email addresses), the legal basis under GDPR/CCPA, and your rights, please read our full privacy policy: 
https://robertwp.com/privacy-policy

RW WebP Converter Lite

A lightweight WordPress plugin that converts JPG and PNG images to WebP format in bulk and automatically converts newly uploaded images.

htmlrunner

Image Compressor WebP by htmlrunner converts JPEG and PNG images in your media library to WebP format, reducing file sizes without any visible quality loss.
<h3>Your Images Never Leave Your Server</h3>
This plugin works entirely within your own hosting environment. No image data is ever transmitted to our servers or any third-party service. Every conversion runs through your server’s native PHP GD or Imagick library — the same tools already installed on virtually every hosting plan.
This means:
<ul>
<li>Complete data privacy — your images stay on your infrastructure, period.</li>
<li>No API keys or accounts — there is nothing to sign up for.</li>
<li>No subscription fees — no usage limits tied to external credits.</li>
<li>Works offline — no outbound connection is required for processing.</li>
</ul>
<h3>What It Does</h3>
<ul>
<li>Converts JPEG and PNG images to WebP format directly on your server.</li>
<li>Supports bulk conversion — process your entire media library in one go, or select specific images.</li>
<li>Adjustable compression quality via a dedicated settings page, so you control the size-to-quality trade-off.</li>
<li>Replaces original files with the WebP version to reclaim disk space.</li>
<li>No configuration beyond activation is required to get started.</li>
</ul>
<h3>Who Made This</h3>
This plugin is developed and maintained by <a href="https://htmlrunner.com" rel="nofollow ugc">htmlrunner.com</a>. For full documentation, updates, and usage guidance, visit the official plugin page: 
<a href="https://htmlrunner.com/wordpress-plugins/image-compressor-webp-by-htmlrunner/" rel="nofollow ugc">https://htmlrunner.com/wordpress-plugins/image-compressor-webp-by-htmlrunner/</a>

Image Compressor WebP by htmlrunner

Convert your media library images to WebP format — fully on your own server, with zero data shared externally.

RW WebP Converter Lite vs Image Compressor WebP by htmlrunner