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.

Mustafijur Rahman

Soovex WebP Converter is a powerful, feature-rich WordPress plugin that automatically converts your media library images (JPG, PNG) to modern WebP format. This image optimization plugin significantly reduces file sizes by 25-35% while maintaining excellent visual quality, resulting in faster page load times, improved Google PageSpeed scores, better SEO rankings, and reduced bandwidth usage.
Why Use WebP Image Format? 
WebP is a modern image format developed by Google that provides superior compression compared to traditional JPEG and PNG formats. It offers both lossless and lossy compression, allowing you to achieve smaller file sizes without sacrificing image quality. WebP images load faster, consume less bandwidth, improve Core Web Vitals scores, and enhance user experience – especially on mobile devices. All modern browsers support WebP, and this plugin automatically serves WebP to compatible browsers while falling back to original formats for older browsers.
Key Features:
<ul>
<li>Unlimited Image Conversions: Convert unlimited JPG/PNG images to WebP format with no restrictions</li>
<li>One-Click Conversion: Convert single, multiple, or all images with simple one-click operations</li>
<li>Smart Backup System: Automatically creates secure backups of original images before conversion</li>
<li>Media Library Integration: Seamlessly convert images directly from WordPress media library</li>
<li>Bulk Processing: Convert single, multiple, or all images at once with background processing</li>
<li>URL Conversion: Convert images from external URLs and save to media library</li>
<li>Quality Control: Adjustable WebP compression quality (40-100) for optimal balance</li>
<li>Auto-Convert Uploads: Automatically convert new image uploads to WebP format</li>
<li>Revert Functionality: Restore original images from backups anytime with one click</li>
<li>Activity Logging: Comprehensive activity log tracking all conversions, failures, and reversions</li>
<li>Real-Time Statistics: Monitor conversion stats, storage savings, and performance metrics</li>
<li>Modern Dashboard: Beautiful, intuitive dashboard with conversion statistics and quick actions</li>
<li>Lazy Loading Support: Optional native lazy loading for improved page performance</li>
<li>Browser Compatibility: Automatic fallback to original images for unsupported browsers</li>
<li>Server Health Check: Built-in server requirements verification and status monitoring</li>
<li>Backup Management: Flexible backup retention settings with automatic cleanup options</li>
<li>SEO Optimization: Improves Google PageSpeed scores and Core Web Vitals</li>
<li>Performance Monitoring: Track storage savings, conversion statistics, and bandwidth reduction</li>
</ul>
<h3>Documentation</h3>
<h4>Conversion Options</h4>
Convert Single Image 
Convert one image at a time from your media library to WebP format.
<ul>
<li>Click the “Convert Single Image” button on the Dashboard</li>
<li>Select an image from your media library</li>
<li>Click “Convert” to start the conversion</li>
<li>The converted WebP image will be saved automatically</li>
</ul>
Note: Only JPEG and PNG images can be converted to WebP format.
Convert Multiple Images 
Convert multiple images at once from your media library.
<ul>
<li>Click the “Convert Multiple Images” button on the Dashboard</li>
<li>Click “Select Images” to open the media library</li>
<li>Hold Ctrl (Windows/Linux) or Cmd (Mac) while clicking to select multiple images</li>
<li>Click “Use these images” to confirm your selection</li>
<li>Click “Convert” to start batch conversion</li>
<li>Monitor progress in the progress modal</li>
</ul>
Tip: Batch conversion processes images in the background, so you can continue working while conversions complete.
Convert by URL 
Convert an image from an external URL to WebP format.
<ul>
<li>Click the “Convert by URL” button on the Dashboard</li>
<li>Enter the full URL of the image (must be a direct link to a JPEG or PNG image)</li>
<li>Click “Convert” to download and convert the image</li>
<li>The converted image will be saved to your media library</li>
</ul>
Important: The URL must be publicly accessible and point directly to an image file (not an HTML page).
Convert All Media 
Convert all JPEG and PNG images in your media library to WebP format at once.
<ul>
<li>Click the “Convert All Media” button on the Dashboard</li>
<li>Confirm the action in the modal dialog</li>
<li>Monitor the progress in the progress modal</li>
<li>The conversion will process all eligible images in your media library</li>
</ul>
Warning: This action will convert all images. Make sure you have backups enabled if you want to keep originals.
<h4>Compression Settings</h4>
Image Compression Quality 
Control the balance between image quality and file size.
Quality Levels: 
* 40-60%: High compression, smaller file size, noticeable quality loss 
* 60-80%: Balanced compression, good quality with reasonable file size (recommended) 
* 80-100%: Low compression, larger file size, minimal quality loss
Recommended: 80-85% provides an excellent balance between quality and file size for most websites.
<h4>Backup & Recovery</h4>
Enable Data Backup 
Keep original images as backup after conversion. This allows you to revert conversions if needed.
Benefits: 
* Original images are preserved in a backup folder 
* You can revert any conversion at any time 
* Provides safety net for all conversions
Note: Backups use additional storage space. Monitor your disk usage if you have many images.
Backup Reminder 
Get notified before backup data is automatically deleted.
When enabled, you’ll receive admin notices 3 days before backups are scheduled for deletion, giving you time to take action if needed.
Automatically Delete Original Data from Backup 
Set how long to keep backup files before automatic deletion.
Options: 
* 7-365 days: Keep backups for a specific duration 
* Custom: Set your own duration (1-3650 days) 
* Never: Keep backups permanently (uses more storage)
Critical: Once deleted, original images cannot be recovered. Ensure you have backups elsewhere if needed.
All Data Recovery (Revert All) 
Revert all converted images back to their original format.
This action will restore all converted WebP images to their original JPEG/PNG format using the backup files. Only works if backups are enabled and available.
<h4>Auto Features</h4>
Auto-convert New Uploads 
Automatically convert images to WebP when they are uploaded to the media library.
How it works: 
* When enabled, all new JPEG/PNG uploads are automatically converted 
* Conversion happens in the background after upload 
* Original images are kept as backup (if backup is enabled) 
* No manual intervention required
Requirement: Auto-convert requires backup to be enabled. If backup is disabled, auto-convert will also be disabled.
Enable Lazy Loading 
Improve page load times by loading images only when they enter the viewport.
Benefits: 
* Faster initial page load times 
* Reduced bandwidth usage 
* Improved performance on mobile devices 
* Better user experience on image-heavy pages
Lazy loading adds the native “loading=’lazy'” attribute to all img tags. Modern browsers support this natively without additional JavaScript.
Serve WebP Images 
Automatically serve WebP images to browsers that support them for better performance.
How it works: 
* Browsers that support WebP receive the optimized WebP version 
* Older browsers automatically receive the original format 
* No changes needed to your theme or content 
* Works transparently in the background
Compatibility: All modern browsers support WebP. Older browsers will automatically fall back to original formats.
<h4>Activity Log</h4>
Viewing Activity Log 
Track all conversion activities, including successful conversions, failures, and reversions.
Information displayed: 
* Original Image: Name of the source image 
* WebP Image: Name of the converted WebP file 
* Status: Conversion status (Converted, Failed, Reverted) 
* Date: When the action occurred
Revert Single Image 
Revert a single converted image back to its original format.
Click the “Revert” button next to any converted image in the Activity Log to restore it to its original format. Only available for successfully converted images with backups.
Retry Failed Conversion 
Retry a conversion that previously failed.
Click the “Retry” button next to any failed conversion in the Activity Log to attempt the conversion again. Useful if the failure was due to temporary issues.
Clear Logs 
Clear all activity log entries.
Use the “Clear Logs” button to remove all activity log entries. This action cannot be undone but does not affect your images.
<h4>Advanced Options</h4>
Reset Everything 
Reset all plugin settings and data to default values.
This action will: 
* Revert all converted images to original format 
* Clear all activity logs 
* Reset all settings to default 
* Delete all backup files
⚠️ This action cannot be undone!
<h4>Tips & Best Practices</h4>
Recommended Settings: 
* Enable backups for safety 
* Set compression quality to 80-85% 
* Enable auto-convert for new uploads 
* Enable lazy loading for better performance
Performance Tips: 
* Use batch conversion for many images 
* Monitor disk space with backups enabled 
* Check Activity Log regularly 
* Test compression quality on sample images first
<h4>Server Requirements</h4>
Server Health Check 
The plugin includes a built-in server health check feature that verifies:
<ul>
<li>GD Extension: Must be enabled for image processing</li>
<li>WebP Support: GD extension must support WebP format</li>
<li>Memory Limit: Recommended minimum of 128MB</li>
</ul>
Note: If WebP support is not available, contact your hosting provider to enable GD extension with WebP support.

Soovex WebP Converter – Convert Images | Optimize & Compress | Unlimited Conversions

Automatically convert WordPress images to WebP format. Optimize images, boost page speed and SEO with unlimited conversions and smart backups.

Simple WebP vs Soovex WebP Converter – Convert Images | Optimize & Compress | Unlimited Conversions