Katsushi Kawamori

<h4>Generate WebP or AVIF</h4>
<ul>
<li>Generate WebP or AVIF file when adding image file in Media Library.</li>
<li>Generate WebP or AVIF from all the images by async/await.</li>
<li>Optionally, Can replace image files with WebP or AVIF when adding new media, and delete the original image file. Also, when generating all images, the original image file ID will be overwritten as WebP or AVIF and the original image file will be deleted. All URLs in the content are also replaced.</li>
</ul>
<h4>WP-CLI</h4>
<p>WP-CLI commands are available. If you have a large number of files, WP-CLI commands is more reliable.<br />
* <code>wp pluswebpavif</code><br />
* <code>wp pluswebpavif webp</code> -> Generated WebP.<br />
* <code>wp pluswebpavif avif</code> -> Generated AVIF.<br />
* <code>wp pluswebpavif help</code> -> Specification of this command.<br />
* <code>wp pluswebpavif webp mail</code> -> Send results via email.<br />
* <code>wp pluswebpavif webp replace</code> -> WebP or AVIF replacement of images and contents.<br />
* <code>wp pluswebpavif avif addext</code> -> Append the webp or avif extension to the original filename.<br />
* <code>wp pluswebpavif webp --pid=12152</code> -> Process only specified Media ID(Conversion source ID).<br />
* <code>wp pluswebpavif avif --quality=90</code> -> Specifies the quality of WebP or AVIF.<br />
* <code>wp pluswebpavif webp --types=image/png,image/gif</code> -> MIME type to convert.</p>
<h4>How it works</h4>
<span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/EIheJryR7j0?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span>
<h4>Filter hooks</h4>
<pre><code>/** ==================================================
 * Filter for advanced change database.
 * If you want to replace other databases besides content.
 */
add_filter(
    'plus_webp_advanced_change_db',
    function( $before_url, $after_url ) {
        /* Your processing */
        return array( $before_url, $after_url );
    },
    10,
    2
);
</code></pre>


Plus WebP or AVIF

It is very useful to replace the URLs of images of existing content as well.

Easy and very useful


I really like this plugin and it's very good in other aspects. However, on both of my websites, when converting in bulk, I was unable to continue the conversion for a certain period of time, indicating an Ajax 500 error. What is the reason?


500 error


This is great plugin to save my server space!



Dear developer, I prefer to donate by paypal, usdt or stripe instead of inputting my credit card elsewhere.


Great plugin

jprompt

<p><strong>Make your WordPress site blazing fast with Pixengine – The intelligent image converter and optimizer.</strong></p>
<p>Pixengine automatically converts all uploaded images to WebP and AVIF formats with intelligent optimization, reducing file sizes by 40-70% while maintaining visual quality. Perfect for improving page speed, SEO rankings, and user experience.</p>
<h4>Key Features</h4>
<p><strong>Automatic Conversion</strong><br />
* Auto-convert JPG and PNG uploads to WebP or AVIF<br />
* Choose WebP only, AVIF only, or both formats<br />
* Smart resizing for images over configurable width<br />
* Maintains aspect ratio automatically<br />
* Preserves transparency for PNG images<br />
* Converts all WordPress thumbnail sizes</p>
<p><strong>AVIF Support (New in 1.1.0)</strong><br />
* Next-generation AVIF format with superior compression<br />
* Up to 50% smaller files than WebP<br />
* Automatic browser detection and fallback<br />
* Requires PHP 8.1+ or Imagick with AVIF support</p>
<p><strong>Superior Compression</strong><br />
* Uses Imagick (when available) for best compression<br />
* Strips unnecessary metadata (EXIF, profiles)<br />
* Optimized settings for 40-70% file size reduction<br />
* Fallback to GD library with optimization<br />
* Separate quality controls for WebP and AVIF</p>
<p><strong>Lazy Loading (New in 1.1.0)</strong><br />
* Native browser lazy loading support<br />
* Exclude first N images (above-the-fold)<br />
* Improves initial page load performance<br />
* Works with post content, thumbnails, and attachments</p>
<p><strong>Responsive Images (New in 1.1.0)</strong><br />
* Automatic srcset optimization<br />
* Optional picture element wrapping<br />
* Format fallback: AVIF > WebP > Original</p>
<p><strong>Caching Integration (New in 1.1.0)</strong><br />
* Configurable cache headers via .htaccess<br />
* Browser caching for repeat visits<br />
* Immutable cache-control for static images</p>
<p><strong>Bulk Conversion</strong><br />
* Convert existing media library images<br />
* Keeps original files for compatibility<br />
* Automatic .htaccess configuration<br />
* Browser-based optimized image delivery<br />
* Progress tracking with detailed logging</p>
<h4>Perfect For</h4>
<ul>
<li><strong>E-commerce</strong> – Faster product page loading</li>
<li><strong>Photographers</strong> – Portfolio optimization</li>
<li><strong>Bloggers</strong> – Quick page loads, better SEO</li>
<li><strong>News Sites</strong> – Handle high-volume image uploads</li>
<li><strong>Agencies</strong> – Client site optimization</li>
<li><strong>Developers</strong> – Performance-first development</li>
</ul>
<h4>Performance Benefits</h4>
<ul>
<li><strong>40-70% smaller file sizes</strong> compared to JPG/PNG</li>
<li><strong>Faster page load times</strong> – Better Core Web Vitals</li>
<li><strong>Improved SEO rankings</strong> – Page speed is a ranking factor</li>
<li><strong>Reduced bandwidth costs</strong> – Smaller files = less data</li>
<li><strong>Better mobile experience</strong> – Faster loads on slow connections</li>
<li><strong>Green hosting</strong> – Lower carbon footprint</li>
</ul>
<h4>How It Works</h4>
<p><strong>New Uploads (Automatic):</strong><br />
1. Upload JPG or PNG image<br />
2. Plugin resizes if width > 1920px (configurable)<br />
3. Converts to WebP with optimized compression<br />
4. Strips metadata for smaller files<br />
5. Original deleted (saves storage)<br />
6. All thumbnails converted to WebP</p>
<p><strong>Existing Images (Bulk):</strong><br />
1. Click “Start Bulk Conversion”<br />
2. Converts all JPG/PNG in media library<br />
3. Keeps originals for compatibility<br />
4. Updates .htaccess for automatic WebP delivery<br />
5. Browsers that support WebP get optimized images<br />
6. Older browsers get original JPG/PNG</p>
<h4>Technical Details</h4>
<p><strong>Compression Methods:</strong><br />
* Primary: Imagick with method 6 (best compression)<br />
* Fallback: GD with alpha channel preservation<br />
* Automatic metadata stripping<br />
* Configurable quality settings (1-100)<br />
* Smart resizing with LANCZOS filtering</p>
<p><strong>WebP Options (Imagick):</strong><br />
* Method 6 compression (highest quality)<br />
* Lossy compression for better file sizes<br />
* Alpha quality 100 (perfect transparency)<br />
* Auto-filter optimization<br />
* Lossless option available</p>
<p><strong>Browser Compatibility:</strong><br />
* Automatic .htaccess rules for serving WebP<br />
* Fallback to original JPG/PNG for older browsers<br />
* Supports Chrome, Firefox, Edge, Safari 14+, Opera<br />
* Mobile browsers fully supported</p>
<h4>Privacy & Performance</h4>
<ul>
<li>No external API calls</li>
<li>All processing done on your server</li>
<li>No data collection or tracking</li>
<li>Minimal performance impact</li>
<li>Asynchronous bulk conversion</li>
<li>Progress tracking without page reload</li>
</ul>
<h3>Technical Specifications</h3>
<h4>Supported Formats</h4>
<ul>
<li>Input: JPEG, JPG, PNG</li>
<li>Output: WebP, AVIF</li>
</ul>
<h4>Compression Details</h4>
<ul>
<li>Imagick: Method 6, lossy, auto-filter (WebP and AVIF)</li>
<li>GD: Alpha blending, transparency preservation</li>
<li>AVIF: Requires PHP 8.1+ or Imagick with AVIF support</li>
<li>Metadata stripping: EXIF, color profiles, thumbnails</li>
<li>Quality range: 1-100 (WebP: 70-80, AVIF: 60-70 recommended)</li>
</ul>
<h4>File Size Reductions</h4>
<ul>
<li>WebP from JPEG: 40-60% reduction</li>
<li>WebP from PNG: 50-70% reduction</li>
<li>AVIF from JPEG: 50-70% reduction</li>
<li>AVIF from PNG: 60-80% reduction</li>
<li>Large images (>1920px): 60-85% reduction</li>
</ul>
<h4>Browser Support</h4>
<ul>
<li>Chrome/Edge: Full WebP and AVIF support</li>
<li>Firefox: Full WebP and AVIF support</li>
<li>Safari: WebP 14+, AVIF 16+ (macOS Ventura, iOS 16)</li>
<li>Opera: Full support</li>
<li>IE/Legacy: Automatic fallback to JPG/PNG</li>
</ul>
<h3>Privacy Policy</h3>
<p>This plugin does not:<br />
* Collect any personal data<br />
* Send images to external servers<br />
* Use cookies<br />
* Track users<br />
* Make any external API calls</p>
<h3>Support</h3>
<p>Community support via WordPress.org forums.</p>
<h3>Credits</h3>
<p>Developed by JPrompt.</p>


JPrompt's Pixengine – Image Converter & Optimizer

Automatically convert and optimize images to WebP and AVIF formats with intelligent resizing, lazy loading, and caching. Boost page speed by 40-70% wi …

Plus WebP or AVIF vs JPrompt's Pixengine – Image Converter & Optimizer