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

Shakib R Khan

<p><strong>Super Duper Image Auto Optimizer</strong> compresses newly uploaded images (JPEG/PNG/WebP), strips EXIF, and generates modern formats (WebP/AVIF when supported). It also includes a one-click bulk optimizer in the admin and a WP-CLI command for existing media.</p>
<p><strong>Highlights</strong><br />
– Automatic optimization for new uploads (original + sizes)<br />
– One-click bulk optimization (batched via AJAX, resume)<br />
– WebP generation and AVIF when supported<br />
– Imagick preferred; GD fallback<br />
– No third-party services or tracking<br />
– WP-CLI: <code>wp sdiao:bulk</code></p>
<h3>Usage</h3>
<ul>
<li><strong>Bulk optimize:</strong> Media <span aria-hidden="true" class="wp-exclude-emoji">→</span> Super Duper Image Auto Optimizer <span aria-hidden="true" class="wp-exclude-emoji">→</span> <strong>Bulk Optimize</strong>.</li>
<li><strong>WP-CLI:</strong> <code>wp sdiao:bulk</code>.</li>
</ul>
<h3>FAQs</h3>
<p>= Do I need to drag and drop into the plugin? =<br />
No. It hooks into normal uploads and runs automatically.</p>
<h4>Does it generate WebP/AVIF for all sizes?</h4>
<p>Yes (AVIF requires Imagick with AVIF support).</p>
<h3>Privacy</h3>
<p>Processes images locally; stores only minimal bulk progress (<code>sdiao_bulk_state</code>). No telemetry.</p>
<h3>Security</h3>
<p>Nonce + capability checks on AJAX; escaped admin output; no remote code.</p>


Super Duper Image Auto Optimizer

Reduce image sizes on upload and in bulk, strip EXIF, and generate WebP/AVIF with Imagick or GD — no external APIs.

Plus WebP or AVIF vs Super Duper Image Auto Optimizer