Freemius

Harv

<p>Harvify Image Optimizer helps WordPress administrators convert Media Library images to modern WebP and AVIF formats without running heavy compression work inside PHP.</p>
<p>The plugin scans lightweight attachment metadata first, then your browser converts selected images in a small queue. Images are processed with Web Workers and OffscreenCanvas where available, uploaded back through authenticated WordPress REST API requests, and released from browser memory as each item finishes.</p>
<p>This client-side approach is designed for shared hosting environments where PHP memory limits and execution timeouts can interrupt large image optimization jobs.</p>
<h4>Key features</h4>
<ul>
<li>Convert JPEG, PNG, WebP, and AVIF source images to WebP or AVIF.</li>
<li>Scan one source format at a time so existing target-format images are not accidentally reprocessed.</li>
<li>Select a few images for a test run before processing the full queue.</li>
<li>Skip small files, very large images, selected upload paths, or filename patterns.</li>
<li>Deliver Pro sidecar variants through PHP picture tags when available.</li>
<li>Adjust quality and queue concurrency from the admin screen.</li>
<li>Save queue state in the browser with IndexedDB so work can resume after interruption.</li>
<li>Keep wp-admin responsive by doing conversion work in browser workers.</li>
<li>Process images locally in your browser without using an external optimization API.</li>
<li>Optional original-file deletion, disabled by default.</li>
</ul>
<h4>Privacy and external services</h4>
<p>Harvify Image Optimizer does not send images to a third-party compression service, load scripts from external CDNs, or track usage. Images are fetched by your browser from your own WordPress site and uploaded back to your own WordPress REST API.</p>
<p>AVIF encoding uses bundled WebAssembly encoder files. The current AVIF path uses the Apache-2.0 licensed @jsquash/avif single-thread encoder, with the earlier bundled wasm-avif encoder retained as a local fallback.</p>
<h4>Format testing</h4>
<p>If you want to experiment with AVIF conversion outside your WordPress Media Library first, you can use this browser-based test tool:</p>
<p><a href="https://conversores.online/en/avif-to-png-converter/" rel="nofollow ugc">AVIF to PNG Converter</a></p>


Harvify Image Optimizer for WebP and AVIF

Convert Media Library images to WebP or AVIF locally in your browser.

robertcpalmer

<p>Supercharge your site with instant-loading images (WebP)</p>
<p>Give your website a speed boost in minutes. This plugin converts and compresses your images to the modern, ultra-efficient WebP format—so pages feel snappier and visitors stick around longer.</p>
<p>Why you’ll love it!</p>
<p>Faster pages, happier users: WebP files are smaller, so images load noticeably quicker, but the quality stays sharp. Even when using a Compression Setting of just ‘1’.</p>
<p>Set & forget: Convert and compress everything in your Media Library, then let the plugin automatically optimise new uploads.</p>
<p>No workflow change: In the WordPress admin, you’ll still see images in their original formats. On the front end, however, visitors get the magic: lightweight, crystal-clear WebP files.</p>
<p>Totally FREE! There are no PRO versions to sell or the pushing of unnecessary CDN services, data-limited APIs or any Registration.  Use without limits.</p>
<p>Safe rollback: Want to switch back? DEACTIVATE the plugin to serve your original JPG/JPEG/PNG files again — WebP copies are removed as part of the process.</p>
<h4>How it works</h4>
<p>Convert existing images in your Media Library to WebP.</p>
<p>Keep the automatic conversion on for all future uploads.</p>
<p>Enjoy noticeably faster page loads without touching your content.</p>
<p>Pro tips (read me!)</p>
<p>-After converting, flush all caches: any caching plugin (e.g. WP Rocket), server-side cache, and your browser cache (Windows: Ctrl+Shift+R; Mac: ⌘+Shift+R).</p>
<p>-If you deactivate the plugin to revert to originals, flush caches again to ensure changes show everywhere.</p>
<p>-If you upload an image in WebP format, because it will have no fallback jpeg/png file, if you deactivate the plugin, that image will NOT be lost when all WebP files are deleted.</p>
<p>-Important: ALWAYS back up your site before activating or deactivating this plugin.</p>
<p>** Ready to make your images smaller, sharper, and faster? Install now and feel the difference. 🚀</p>
<h3>FAQs</h3>
<p>= If I deactivate the plugin and then reactivate it again, will I need to convert all my images again? =<br />
Yes. On deactivation of the plugin, it performs a full rollback, and all WebP images created by the plugin will be deleted, and your original files jpg/png will be served.  Where you have WebP files that do not have a fallback file, those files will not be removed.</p>
<h4>What Compression Level should I set?</h4>
<p>If your existing images are of reasonable quality, set the Compression Level to ‘1’ and get image compressions of an amazing 90%+ and get excellent performance enhancements on your site, and the quality and sharpness of the images will also amaze.</p>


Images to WebP Converter

Convert and Compress your Image Files into WebP Format. With compression rates up to 90+%.  Make your images and pages load instantly.

Harvify Image Optimizer for WebP and AVIF vs Images to WebP Converter