gecko43

<p>Convert jpeg and png images to their webp equivalents by leveraging google’s libwebp and web assembly and serve webp images directly when supported in posts and pages.</p>
<h3>Quick start</h3>
<ul>
<li>Sign into the backoffice as an admin user.</li>
<li>Install the plugin and activate it.</li>
</ul>
<h3>Convert a single media library image</h3>
<ul>
<li>Navigate to <strong>Media > Library</strong></li>
<li>Select the <strong>list view</strong> icon</li>
<li>Locate a jpeg or png image for editing and click the media’s title link or the “edit” link under the entry.</li>
<li>Scroll down to the bottom of the edit page to the (new) <em>WebP Conversion</em> section</li>
<li>Click <strong>Create</strong> to create a webp version of this media library image on the server</li>
<li>Click <strong>Delete</strong> to delete a webp version if it exists for this media library image</li>
</ul>
<h3>Convert all media library images</h3>
<ul>
<li>Navigate to <strong>Plugins</strong> </li>
<li>Set the quality and overwrite flag as desired</li>
<li>Click <strong>Create</strong> to create webp files for all media library images</li>
<li>Click <strong>Delete</strong> to delete existing webp files for all media library images</li>
</ul>
<h3>How it works</h3>
<p>The client (browser) creates a webp version of the image when the <strong>Create</strong> button is clicked. This is then sent to the server where it is saved in the same folder as the original image, but with a <code>.webp</code> extension.</p>
<p>For example, if the original image is</p>
<pre><code>/wp-content/uploads/2020/05/test.jpg
</code></pre>
<p>an additional</p>
<pre><code>/wp-content/uploads/2020/05/test.webp
</code></pre>
<p>will be created there.</p>
<p>A filter is applied in the WordPress hook <code>the_content</code> to swap an image for its webp equivalent if available.</p>
<h3>More about the conversion</h3>
<p>Conversion is done on the client, so a modern browser with wasm support is needed. This is because conversion to webp with php requires shell_exec to make calls to Google’s cwebp or other php extensions are needed. These features often pose security risks that outweigh the benefits. This plugin gets around that by delegating the actual image conversion to the client. It’s based on <a href="https://github.com/wrburnham/webp-wasm" rel="nofollow ugc">this encoder</a> to save webp versions of uploaded jpeg and png images.</p>
<h3>License</h3>
<p>This plugin is licensed as GPLv3.</p>
<h3>Notes</h3>
<p>The simple html dom parser library is used to render webp images directly in WordPress content where possible. The client-side conversion to WebP leverages Google’s libwebp.</p>


WebP WASM

Convert jpeg and png media to webp and serve webp images when the browser supports it. This has been tested on WordPress 5.4.1 with php 7.2.

sheepfish

Denis

<p>WebP Conversion allows you to automatically convert images to WebP format while uploading them to the WordPress media library. You can also convert individual images, perform bulk conversions directly from the media library, restore original images after conversion, and delete originals if you want to save storage space.</p>
<p>Unlike many other plugins, <strong>WebP Conversion is 100% free and completely unlimited</strong> – no premium version, no hidden restrictions, and no image limits. Convert as many images as you want, whenever you want!</p>
<p>Key features include:<br />
– Unlimited image conversions with no restrictions.<br />
– Bulk Conversion and Bulk Restore options for converting or restoring multiple images at once with real-time feedback.<br />
– Image conversion quality settings for images below 200KB, between 200KB and 1MB, between 1MB and 2.5MB and more than 2.5MB.<br />
– Option to automatically convert images when they are uploaded to the media library.<br />
– Single image conversion button for .png and .jpeg files in the WordPress media library.<br />
– “Select All” button for WordPress media library.<br />
– Full compatibility with ACF and WooCommerce.<br />
– Enabling uploads of .svg and .ico images.<br />
– Automatic replacement of converted images in postmeta, termmeta, usermeta, post content, WooCommerce gallery, WooCommerce product thumbnails and ACF fields.<br />
– Restore original images after conversion if needed.<br />
– Option to delete original images after conversion to save storage space.<br />
– “Remove all originals” button on the plugin page to quickly clear all original images and free up space.</p>
<h3>Key Features:</h3>
<ul>
<li>Automatic WebP conversion on image upload.</li>
<li>Restore original images after conversion.</li>
<li>Delete original images to save disk space.</li>
<li>Conversion quality settings based on image size categories.</li>
<li>“Convert to WebP”, “Restore” and “Remove” buttons for individual images in the media library.</li>
<li>Bulk image conversion with real-time progress display.</li>
<li>ACF and WooCommerce compatibility.</li>
<li>Upload .svg and .ico into WordPress Media.</li>
<li>Replaces old images with new WebP versions in existing locations.</li>
<li>“Remove all originals” button for quick storage cleanup.</li>
</ul>
<h3>Note</h3>
<ul>
<li>There is no way of converting individual images over 10MB.</li>
</ul>


WebP Conversion

Convert your .png and .jpeg images to WebP format for FREE – with absolutely NO limits or hidden restrictions.

WebP WASM vs WebP Conversion