Marco Di Giacomantonio

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.
After 1 month of production testing across 6 live sites (5,089 images, 2.2 GB saved), this plugin achieves 40–70% file size reduction with zero visible quality loss and 0% conversion failure rate on both Aruba and Serverplan shared hosting.
<h4>Real Production Results</h4>
<ul>
<li>dermopigmentazioneroma.it — 904 images, 721 MB saved (-68%), Mobile PageSpeed 80/100</li>
<li>mangiaroma.com — 1,213 images, 804 MB saved (-70%), 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>
Total: 4,989 images converted. 0 failures. 2.2 GB saved.
<h4>Why AVIF?</h4>
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.
<h4>How It Works</h4>
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:
<pre><code><picture>
 <source srcset="image.avif" type="image/avif">
 <img src="image.jpg" alt="...">
</picture>
</code></pre>
Your original files are never modified unless you explicitly enable “Delete Originals.”
<h4>Key Features</h4>
Zero cloud dependency — All conversion happens on your server using PHP’s native Imagick or GD library. No API keys, no usage limits, no recurring costs.
Works on shared hosting — 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.
Adaptive batch processing (AIMD) — 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.
Memory guard — 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.
Circuit Breaker for Imagick — If Imagick fails 3 consecutive times, the plugin automatically switches to GD and retries Imagick after 30 minutes. No manual intervention required.
Quarantine system — 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.
Skip Patterns — 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.
Bulk Scanner — 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.
Telemetry Dashboard — Real-time dashboard showing conversion rate, average compression ratio, fail rate, performance score, and a rolling chart of the last 200 conversion events.
CDN integration — Automatic Cloudflare cache purge after each batch conversion, so your CDN always serves the latest AVIF files.
Elementor & lightbox support — Gallery lightboxes (Elementor, Fancybox, WP native) are rewritten to serve AVIF in the full-size view, not just thumbnails.
Animated GIF preservation — 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.
CMYK image handling — Images from professional photography workflows (JPEG with CMYK color space) are automatically converted to sRGB before encoding to prevent color inversion artifacts.
Clean uninstall — Removing the plugin deletes all database tables, options, transients, and the WP-Cron job. Zero ghost data left behind.
<h4>WooCommerce Compatibility</h4>
Tested on two active WooCommerce stores. Product images, gallery thumbnails, and checkout images are all converted and served correctly.
<h4>Encoder Compatibility</h4>
The plugin requires at least one of:
<ul>
<li>Imagick ≥ 7.0.25 with libheif compiled with AV1 support</li>
<li>PHP ≥ 8.1 with GD + libavif (<code>imageavif()</code> function available)</li>
</ul>
The Settings page shows which encoders are available on your server and their current status (including Circuit Breaker state).
<h4>PHP & WordPress Compatibility</h4>
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.
<h3>External Services</h3>
This plugin optionally communicates with the Cloudflare API (<code>api.cloudflare.com</code>) to purge CDN cache after batch image conversion.
This feature is disabled by default and only activates if you explicitly enable “Cloudflare CDN Integration” in the plugin settings and provide your own Cloudflare Zone ID and API Token.
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.
<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>
All image conversion is performed locally on your server. No images or personal data are ever sent to external services.

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.

Mustafa Uysal

poweredcache

Image Optimizer Pro is your ultimate solution to optimize images efficiently. Designed for WordPress users, it automatically converts and serves images in AVIF or webp format where the browser supports, ensuring faster load times and enhanced user experience.
<h4>Key Features</h4>
<ul>
<li>
On-the-fly Image Optimization: No need to manually convert each image. Image Optimizer Pro does it for you!
</li>
<li>
Serve in AVIF or WebP: Utilize the latest image formats for faster loading and better performance.
</li>
<li>
Global Network Distribution: Images are distributed on our extensive global network, ensuring they are served swiftly to your visitors, no matter where they are.
</li>
</ul>
Documentation: <a href="https://docs.poweredcache.com/image-optimization/" rel="nofollow ugc">https://docs.poweredcache.com/image-optimization/</a>
Please note: This plugin requires an active license key for operation. Users can utilize their existing <a href="https://poweredcache.com/pricing/" rel="nofollow ugc">Powered Cache Premium</a> license key or purchase a standalone license at <a href="https://poweredcache.com/pricing/image-optimizer/" rel="nofollow ugc">Image Optimizer Pro Plans</a> page.
<h4>Contributing & Bug Report</h4>
Bug reports and pull requests are welcome on <a href="https://github.com/poweredcache/image-optimizer-pro/" rel="nofollow ugc">Github</a>.
If you like Image Optimizer PRO, then consider checking out our other projects:
<ul>
<li><a href="https://poweredcache.com/" rel="friend nofollow ugc">Powered Cache</a> – Caching and Optimization for WordPress – Easily Improve PageSpeed & Web Vitals Score</li>
<li><a href="https://handyplugins.co/magic-login-pro/" rel="friend nofollow ugc">Magic Login Pro</a> – Easy, secure, and passwordless authentication for WordPress.</li>
<li><a href="https://handyplugins.co/easy-text-to-speech/" rel="friend nofollow ugc">Easy Text-to-Speech for WordPress</a> – Transform your textual content into high-quality synthesized speech with Amazon Polly.</li>
<li><a href="https://handyplugins.co/handywriter/" rel="friend nofollow ugc">Handywriter</a> – AI-powered writing assistant that can help you create content for your WordPress.</li>
<li><a href="https://handyplugins.co/paddlepress-pro/" rel="friend nofollow ugc">PaddlePress PRO</a> – Paddle Plugin for WordPress</li>
<li><a href="https://handyplugins.co/wp-accessibility-toolkit/" rel="friend nofollow ugc">WP Accessibility Toolkit</a> – A collection of tools to help you make your WordPress more accessible.</li>
</ul>
<h3>Privacy Policy and Third-Party Service Disclosure</h3>
Our plugin, Image Optimizer Pro, enhances website performance by optimizing and distributing images via a third-party service, <a href="https://poweredcache.com/" rel="nofollow ugc">Powered Cache</a>. 
This collaboration is essential for functionalities like on-the-fly image optimization and global network distribution.
In addition to optimizing images, our service includes verifying website addresses and license keys against our API endpoint. This verification is conducted to ensure that each website is eligible to use our services.
As part of these processes, standard visitor information, such as IP addresses, may be collected, and we ensure the protection of user privacy and data.
For detailed insights into how data is handled by Powered Cache, and to understand the terms under which the service operates, please review the following: 
– <a href="https://poweredcache.com/privacy/" rel="nofollow ugc">Privacy Policy</a> 
– <a href="https://poweredcache.com/tos/" rel="nofollow ugc">Terms of Service</a>

Image Optimizer PRO – Optimize Images, Convert AVIF & WebP

Optimize and serve your images in AVIF or webp format on-the-fly, boosting site performance and decreasing load times with our network distribution.

I-PR AVIF Converter – Automatic Image Optimization vs Image Optimizer PRO – Optimize Images, Convert AVIF & WebP