Marco Di Giacomantonio

<p><strong>I-PR AVIF Converter automatically converts your existing and new images to AVIF format — the most efficient image format available today — without any cloud service, subscription, or API key.</strong></p>
<p>After 1 month of production testing across 6 live sites (5,089 images, 2.2 GB saved), this plugin achieves <strong>40–70% file size reduction</strong> with zero visible quality loss and <strong>0% conversion failure rate</strong> on both Aruba and Serverplan shared hosting.</p>
<h4>Real Production Results</h4>
<ul>
<li>dermopigmentazioneroma.it — 904 images, <strong>721 MB saved (-68%)</strong>, Mobile PageSpeed 80/100</li>
<li>mangiaroma.com — 1,213 images, <strong>804 MB saved (-70%)</strong>, Desktop PageSpeed 97/100</li>
<li>artmerlino.it — 371 images, 167 MB saved (-64%)</li>
<li>apicolturalapegaia.it — 1,069 images, 135 MB saved (-69%)</li>
<li>fnahospitalityroma.it — 432 images, 83 MB saved (-43%)</li>
</ul>
<p><strong>Total: 4,989 images converted. 0 failures. 2.2 GB saved.</strong></p>
<h4>Why AVIF?</h4>
<p>AVIF is the next-generation image format supported by all modern browsers (Chrome, Firefox, Safari 16+, Edge). Compared to JPEG, it delivers 40–70% smaller files at equivalent visual quality. Compared to WebP, it delivers 20–30% better compression. Google PageSpeed Insights and Core Web Vitals (LCP) reward AVIF-optimized sites directly.</p>
<h4>How It Works</h4>
<p>When you upload an image, I-PR AVIF Converter queues it for background conversion via WP-Cron. No page load is blocked. Once converted, images are served automatically via the <code><picture></code> HTML element with a fallback to the original for older browsers:</p>
<pre><code><picture>
  <source srcset="image.avif" type="image/avif">
  <img src="image.jpg" alt="...">
</picture>
</code></pre>
<p>Your original files are never modified unless you explicitly enable “Delete Originals.”</p>
<h4>Key Features</h4>
<p><strong>Zero cloud dependency</strong> — All conversion happens on your server using PHP’s native Imagick or GD library. No API keys, no usage limits, no recurring costs.</p>
<p><strong>Works on shared hosting</strong> — Tested and production-proven on Aruba Basic and Serverplan Eco/Basic. The plugin auto-detects your server’s encoder (Imagick or GD) and falls back gracefully.</p>
<p><strong>Adaptive batch processing (AIMD)</strong> — The plugin learns your server’s speed using an Exponentially Weighted Moving Average and automatically adjusts how many images it processes per cron run. It never causes timeouts or OOM errors.</p>
<p><strong>Memory guard</strong> — Before processing each image, the plugin estimates the required RAM based on image dimensions and encoder type (3.5× for Imagick, 1.8× for GD). If RAM is insufficient, the image is deferred to the next batch. No PHP Fatal errors.</p>
<p><strong>Circuit Breaker for Imagick</strong> — If Imagick fails 3 consecutive times, the plugin automatically switches to GD and retries Imagick after 30 minutes. No manual intervention required.</p>
<p><strong>Quarantine system</strong> — Images that fail 3 conversion attempts are automatically quarantined and excluded from future runs. You can review and retry quarantined images from the admin panel.</p>
<p><strong>Skip Patterns</strong> — Exclude specific images or folders using wildcard patterns (e.g., <code>logos/*.png</code>, <code>2024/03/*-banner.jpg</code>). Useful for images where conversion is not desired.</p>
<p><strong>Bulk Scanner</strong> — Convert your entire existing media library with a real-time progress bar. The scanner is paginated and runs via AJAX without blocking the admin interface.</p>
<p><strong>Telemetry Dashboard</strong> — Real-time dashboard showing conversion rate, average compression ratio, fail rate, performance score, and a rolling chart of the last 200 conversion events.</p>
<p><strong>CDN integration</strong> — Automatic Cloudflare cache purge after each batch conversion, so your CDN always serves the latest AVIF files.</p>
<p><strong>Elementor & lightbox support</strong> — Gallery lightboxes (Elementor, Fancybox, WP native) are rewritten to serve AVIF in the full-size view, not just thumbnails.</p>
<p><strong>Animated GIF preservation</strong> — Animated GIFs are automatically detected (binary frame-count parsing) and excluded from conversion. AVIF does not support animation; the plugin never converts a GIF to a broken static file.</p>
<p><strong>CMYK image handling</strong> — Images from professional photography workflows (JPEG with CMYK color space) are automatically converted to sRGB before encoding to prevent color inversion artifacts.</p>
<p><strong>Clean uninstall</strong> — Removing the plugin deletes all database tables, options, transients, and the WP-Cron job. Zero ghost data left behind.</p>
<h4>WooCommerce Compatibility</h4>
<p>Tested on two active WooCommerce stores. Product images, gallery thumbnails, and checkout images are all converted and served correctly.</p>
<h4>Encoder Compatibility</h4>
<p>The plugin requires at least one of:</p>
<ul>
<li><strong>Imagick</strong> ≥ 7.0.25 with libheif compiled with AV1 support</li>
<li><strong>PHP</strong> ≥ 8.1 with GD + libavif (<code>imageavif()</code> function available)</li>
</ul>
<p>The Settings page shows which encoders are available on your server and their current status (including Circuit Breaker state).</p>
<h4>PHP & WordPress Compatibility</h4>
<p>Tested on PHP 7.4, 8.0, 8.1, 8.2, 8.3. Compatible with WordPress 5.8 through 6.7. PHP 8.2+ deprecation warnings have been resolved.</p>
<h3>External Services</h3>
<p>This plugin optionally communicates with the <strong>Cloudflare API</strong> (<code>api.cloudflare.com</code>) to purge CDN cache after batch image conversion.</p>
<p>This feature is <strong>disabled by default</strong> and only activates if you explicitly enable “Cloudflare CDN Integration” in the plugin settings and provide your own Cloudflare Zone ID and API Token.</p>
<p>No data is sent to Cloudflare unless this feature is manually configured. The only data transmitted are the public URLs of newly converted AVIF images, which Cloudflare needs to purge from its cache.</p>
<ul>
<li>Cloudflare service: https://www.cloudflare.com</li>
<li>Cloudflare Terms of Service: https://www.cloudflare.com/terms/</li>
<li>Cloudflare Privacy Policy: https://www.cloudflare.com/privacypolicy/</li>
</ul>
<p>All image conversion is performed locally on your server. No images or personal data are ever sent to external services.</p>


I-PR AVIF Converter – Automatic Image Optimization

Convert JPEG/PNG to AVIF automatically. 40-70% file size reduction, no cloud API, works on shared hosting. 4,989 images converted, 0% fail rate.

Aurélien LWS

<p>All-in-one speed optimization: caching, WebP/AVIF, Critical CSS, lazy loading, CDN, and more. Instantly boost Core Web Vitals and site speed!</p>
<h3>License</h3>
<p>Released under the terms of the GNU General Public License.</p>
<h3>Transform Your WordPress Site’s Performance in Just One Click</h3>
<p>A premium-quality, <strong>100% FREE</strong> performance optimization suite developed by top web host <strong>LWS</strong> – but works perfectly on <strong>ANY</strong> WordPress hosting!</p>
<p><strong>LWS Optimize</strong> delivers lightning-fast load times with just one plugin: comprehensive caching, WebP/AVIF image conversion, Critical CSS generation, Lazy Loading, Cloudflare CDN integration, built-in PageSpeed testing – all with zero fees and no host restrictions.</p>
<h3>Why Your Site Needs LWS Optimize</h3>
<ul>
<li><strong>Boost Core Web Vitals scores</strong> – Improve your Google rankings</li>
<li><strong>Reduce bounce rates</strong> – Keep visitors engaged with faster loading times</li>
<li><strong>Increase conversions</strong> – Speed directly impacts your bottom line</li>
<li><strong>Save money</strong> – Get premium optimization features without paid subscriptions</li>
<li><strong>Simple setup</strong> – Pre-configured profiles make optimization effortless</li>
</ul>
<h3>Key Features</h3>
<ul>
<li><strong>Complete Caching System</strong> – File-based page cache, browser cache, and server-side caching (Varnish) serve pages in milliseconds</li>
<li><strong>Memory-Based Object Cache</strong> – Memcached integration keeps database queries lightning-fast</li>
<li><strong>Intelligent Media Handling</strong> – Advanced Lazy Loading for images/iframes, automatic dimension attributes, GZIP compression, WebP/AVIF conversion with class/URL exclusions</li>
<li><strong>Advanced CSS/JS Optimization</strong> – Minify, combine, remove unused CSS, generate Critical CSS, preload essential resources, defer/delay JavaScript execution</li>
<li><strong>HTML Optimization</strong> – Minify HTML, strip query strings, disable emojis</li>
<li><strong>One-Click CDN Setup</strong> – Seamless Cloudflare integration with token activation and synchronized cache purging</li>
<li><strong>Built-in Performance Testing</strong> – Run Google PageSpeed Insights directly in WordPress and track improvement history</li>
<li><strong>Database Optimization</strong> – Scheduled cleanup of revisions, spam, transients and more</li>
<li><strong>User-Friendly Interface</strong> – Pre-configured optimization profiles, temporary disable options, and “AI Magic” presets</li>
</ul>
<p>Through our 1-click <strong>Auto-Installer</strong>, LWS deploys WordPress in seconds with tailored packs like AI Site Generator, Divi Builder bundle, or WordPress + WooCommerce setup. Each pack includes essential LWS plugins—with <strong>LWS Optimize</strong> working even faster on our <a href="https://www.lws.fr/hebergement_wordpress.php" rel="nofollow ugc">WordPress hosting</a>, <a href="https://www.lws.fr/hebergement_web.php" rel="nofollow ugc">shared hosting</a>, and <a href="https://www.lws.fr/hebergement-cpanel.php" rel="nofollow ugc">cPanel hosting</a>.</p>
<p>You can also install it manually via Plugins › Add New, regardless of where your site is hosted.</p>
<h3>Front-end Optimization</h3>
<ul>
<li>Minify and combine CSS & JS</li>
<li>Preload critical CSS and fonts</li>
<li>Remove unused CSS & generate Critical CSS</li>
<li>Defer or delay JavaScript execution</li>
<li>Minify HTML</li>
<li>Strip query strings, disable emojis</li>
</ul>
<h3>Media Optimization</h3>
<ul>
<li>Smart Lazy Loading for images, iframes & videos (with exclusion options)</li>
<li>Automatic width/height attributes to prevent layout shifts</li>
<li>GZIP compression for HTML, CSS, and JavaScript</li>
<li>Advanced audio/video preload controls</li>
</ul>
<h3>Image Optimization</h3>
<ul>
<li>Automatic WebP/AVIF conversion and compression (using Imagick or API)</li>
<li>2000 free API credits monthly (additional credits available)</li>
<li>One-click restoration of originals</li>
<li>Auto-convert on upload option</li>
</ul>
<h3>Caching System</h3>
<ul>
<li>High-performance file-based page cache with smart purging and preloading</li>
<li>Object cache with Memcached integration</li>
<li>Server-side cache with Varnish/LWSCache (optimized for LWS hosting)</li>
<li>Browser cache headers</li>
<li>Configurable cache exclusions for mobile, logged-in users & dynamic content</li>
</ul>
<h3>CDN Integration</h3>
<ul>
<li>One-click Cloudflare setup</li>
<li>DDoS protection with worldwide distribution</li>
<li>Synchronized cache purging</li>
</ul>
<h3>Database Optimization</h3>
<ul>
<li>Weekly automatic cleanup of revisions, drafts, spam, and transients</li>
</ul>
<h3>Performance Testing</h3>
<ul>
<li>Integrated Google PageSpeed Insights testing</li>
<li>Performance history tracking</li>
</ul>
<p>Enjoy dramatically faster load times, improved Core Web Vitals scores, and higher search engine rankings – all with minimal configuration required!</p>


LWS Optimize – All-in-One Speed Booster & Cache Tools

All-in-one speed optimization: caching, WebP/AVIF, Critical CSS, lazy loading, CDN, and more. Instantly boost Core Web Vitals and site speed!

I-PR AVIF Converter – Automatic Image Optimization vs LWS Optimize – All-in-One Speed Booster & Cache Tools