David Degner

<p>Built by a <a href="https://www.daviddegner.com" rel="nofollow ugc">Boston photographer</a> for site owners who care about visual quality and full control. This plugin prioritizes <strong>image quality</strong> over everything else — no subscriptions, no external services.</p>
<h3>Features</h3>
<ul>
<li><strong>Local Processing</strong> — All conversion happens on your server. No subscriptions or external API calls. Works great on a shared CPU with 2GB RAM.</li>
<li><strong>Quality First</strong> — Uses LANCZOS resizing, preserves ICC color profiles, and keeps EXIF/XMP/IPTC metadata intact.</li>
<li><strong>Fully Tunable</strong> — Control quality (0–100), speed (0–10), chroma subsampling (4:2:0, 4:2:2, 4:4:4), and bit depth (8/10/12-bit).</li>
<li><strong>Smart Fallback</strong> — Serves AVIF to supported browsers, JPEG to everyone else via picture elements.</li>
<li><strong>Automatic Conversion</strong> — Convert on upload or via daily scheduled background scans.</li>
<li><strong>LQIP Placeholders</strong> — Generate ThumbHash-based low-quality image placeholders for smooth loading.</li>
</ul>
<h3>How It Works</h3>
<p><strong>Front end:</strong> The plugin wraps your img tags in picture elements with an AVIF source. Browsers that support AVIF load the smaller, higher-quality file — others gracefully fall back to JPEG.</p>
<p><strong>Conversion:</strong> Uses ImageMagick CLI (fastest), Imagick PHP extension (high quality), or GD Library (fallback) to convert JPEGs to AVIF on upload or via background jobs.</p>
<p><strong>LQIP:</strong> Generates compact (~30 byte) ThumbHash placeholders that display instantly while images load.</p>
<h3>Server Setup</h3>
<p>The plugin supports three conversion engines, in order of preference:</p>
<h4>ImageMagick CLI (Fastest, Recommended)</h4>
<p>Uses the ImageMagick command-line binary directly:</p>
<ul>
<li><strong>System binary:</strong> ImageMagick 7.x built with HEIF/AVIF support (via libheif)</li>
<li><strong>No PHP extension required</strong></li>
<li><strong>Benefits:</strong> Fastest performance, LANCZOS resizing, full metadata preservation (EXIF, XMP, IPTC, ICC)</li>
<li><strong>Typical paths:</strong> <code>/usr/bin/magick</code>, <code>/usr/local/bin/magick</code>, or Homebrew on macOS</li>
</ul>
<p>To verify AVIF support:</p>
<pre><code>magick -list format | grep -i avif
</code></pre>
<h4>Imagick PHP Extension (High Quality)</h4>
<p>Uses the PHP Imagick extension:</p>
<ul>
<li><strong>PHP extension:</strong> imagick</li>
<li><strong>System libraries:</strong> ImageMagick built with HEIF/AVIF support (via libheif)</li>
<li><strong>Benefits:</strong> LANCZOS resizing, full metadata preservation (EXIF, XMP, IPTC, ICC), color profile handling</li>
</ul>
<p>To install on Ubuntu/Debian:</p>
<pre><code>apt install php-imagick imagemagick libheif-dev
</code></pre>
<h4>GD Library (Fallback)</h4>
<p>Uses PHP’s built-in GD library:</p>
<ul>
<li><strong>PHP extension:</strong> gd built with AVIF support (provides imageavif on PHP 8.1+)</li>
<li><strong>Note:</strong> Some distro builds omit AVIF support; limited metadata preservation</li>
</ul>
<h4>MIME Type Configuration</h4>
<p>Ensure your web server is configured to serve .avif files as image/avif.</p>
<h4>Documentation</h4>
<ul>
<li><a href="https://imagemagick.org/script/download.php" rel="nofollow ugc">ImageMagick installation</a></li>
<li><a href="https://www.php.net/imagick" rel="nofollow ugc">PHP Imagick installation</a></li>
<li><a href="https://www.php.net/manual/en/image.installation.php" rel="nofollow ugc">PHP GD installation</a></li>
<li><a href="https://imagemagick.org/script/formats.php" rel="nofollow ugc">ImageMagick format support</a></li>
</ul>
<h4>Need help with setup?</h4>
<p>If you’re not sure what to install or upgrade, copy your <strong>Server Diagnostics</strong> from the plugin status/tools screen (or run <code>wp avif status --format=json</code>) and paste it into an LLM.</p>
<p>Example prompt:</p>
<pre><code>I need AVIF support for WordPress. Based on this diagnostics output, give me step-by-step commands to install or upgrade ImageMagick, libheif, and PHP Imagick on my server.
</code></pre>
<p>After applying changes, verify with:</p>
<pre><code>wp avif status
magick -list format | grep -i avif<h3>WP-CLI Commands</h3>
</code></pre>
<p>Manage AVIF conversions from the command line.</p>
<h4>Status</h4>
<p>Show system status and AVIF support diagnostics:</p>
<pre><code>wp avif status
wp avif status --format=json
</code></pre>
<h4>Convert</h4>
<p>Convert JPEG images to AVIF format:</p>
<pre><code>wp avif convert --all
wp avif convert 123
wp avif convert --all --dry-run
</code></pre>
<p>Options:</p>
<ul>
<li><code><attachment-id></code> — Specific attachment ID to convert</li>
<li><code>--all</code> — Convert all attachments missing AVIF versions</li>
<li><code>--dry-run</code> — Show what would be converted without actually converting</li>
</ul>
<h4>Statistics</h4>
<p>Show AVIF conversion statistics:</p>
<pre><code>wp avif stats
wp avif stats --format=json
</code></pre>
<h4>Logs</h4>
<p>View or clear conversion logs:</p>
<pre><code>wp avif logs
wp avif logs --limit=50
wp avif logs --clear
</code></pre>
<p>Options:</p>
<ul>
<li><code>--clear</code> — Clear all logs</li>
<li><code>--limit=<number></code> — Number of logs to show (default: 20)</li>
</ul>
<h4>Delete</h4>
<p>Delete AVIF files for an attachment or all attachments:</p>
<pre><code>wp avif delete 123
wp avif delete --all --yes
</code></pre>
<p>Options:</p>
<ul>
<li><code><attachment-id></code> — Attachment ID to delete AVIF files for</li>
<li><code>--all</code> — Delete all AVIF files in the media library</li>
<li><code>--yes</code> — Skip confirmation prompt when using –all</li>
</ul>
<h4>LQIP Commands</h4>
<p>Manage LQIP (ThumbHash) placeholders:</p>
<pre><code>wp lqip stats
wp lqip generate --all --force
wp lqip generate 123
wp lqip delete --all --yes
</code></pre>
<p>For more information, visit <a href="https://wp-cli.org/" rel="nofollow ugc">wp-cli.org</a>.</p>
<h3>Contributing</h3>
<p>Contributions welcome! Please submit issues and pull requests on <a href="https://github.com/ddegner/avif-local-support" rel="nofollow ugc">GitHub</a>.</p>
<h3>License</h3>
<p>GPL v2 or later — <a href="https://www.gnu.org/licenses/gpl-2.0.html" rel="nofollow ugc">View License</a></p>


AVIF Local Support

High-quality AVIF image conversion for WordPress — local, quality-first.

Jordy Meow

<p><strong>Perfect Images handles the basics of WordPress image management that should have been built-in from the start.</strong> Manage image sizes, disable the ones you don’t need, add custom sizes, and regenerate thumbnails in bulk. It’s the essential foundation every WordPress install needs for clean, efficient image handling.</p>
<p>Think of it as your image management base layer. WordPress creates too many sizes? Disable them. Need a custom thumbnail size? Add it. Want retina support or modern formats like WebP/AVIF? Enable those modules. Perfect Images gives you complete control without bloat.</p>
<p>Explore <a href="https://meowapps.com/wp-retina-2x" rel="nofollow ugc">our official site</a> and check out <a href="https://meowapps.com/wp-retina-2x/tutorial/" rel="nofollow ugc">the tutorial</a> to get started.</p>
<h3>Core Features</h3>
<p>⚙️ <strong>Image Size Management</strong><br />
The foundation of everything. View all registered image sizes (WordPress defaults, theme sizes, plugin sizes), disable the ones you don’t need, and add custom sizes. Finally, control over those pesky WordPress-generated sizes like <code>medium_large</code>, <code>1536x1536</code>, and <code>2048x2048</code>.</p>
<p>🔄 <strong>Regenerate Thumbnails</strong><br />
Bulk regenerate thumbnails after changing sizes or switching themes. Progress tracking, smart processing, and automatic cleanup of old unused sizes.</p>
<p>🖼️ <strong>Retina Images (Module)</strong><br />
Optional module for high-DPI displays. Automatically generate and serve crisp @2x versions of your thumbnails. Works seamlessly with WordPress responsive images.</p>
<p>🎨 <strong>Modern Formats (Module)</strong><br />
Optional WebP/AVIF conversion. Convert images to modern formats for smaller file sizes and faster loading—without replacing your originals.</p>
<p>🚀 <strong>Easy IO (Module)</strong><br />
Optional CDN-based image optimization via EWWW. Automatically converts and delivers your images in WebP/AVIF, resizes on the fly, and serves them from a global CDN—zero server configuration required.</p>
<p>🤖 <strong>AI Features (Module)</strong><br />
Optional AI-powered tools. Upscale images via Claid.ai when your source is too small, or use the AI Assistant to analyze your sizes and recommend which to enable or disable based on your theme’s srcset needs.</p>
<h3>🖼️ Retina Images</h3>
<p>Your visitors expect sharp, crisp images. Perfect Images makes retina support effortless.</p>
<p><strong>Smart Generation:</strong></p>
<ul>
<li>Automatic retina creation for all thumbnail sizes</li>
<li>Multiple delivery methods (Responsive Images, PictureFill, Retina.js)</li>
<li>Works with WordPress srcset natively</li>
<li>Full-size retina support</li>
</ul>
<p><strong>Delivery Options:</strong></p>
<ul>
<li>Responsive Images: Modern, standard method</li>
<li>PictureFill: Hybrid approach with fallbacks</li>
<li>Retina.js: Client-side detection</li>
<li>Choose what fits your theme best</li>
</ul>
<h3>🎨 Modern Formats</h3>
<p>WebP and AVIF offer dramatically better compression than JPEG/PNG—up to 50% smaller files with the same visual quality.</p>
<p><strong>What You Get:</strong></p>
<ul>
<li>Generate WebP or AVIF for any image size</li>
<li>Automatic browser detection and fallbacks</li>
<li>Works alongside your original images</li>
<li>Enable for thumbnails or full-size</li>
<li>Responsive Images delivery built-in</li>
</ul>
<h3>🤖 AI Features</h3>
<p>Perfect Images integrates with AI services to help you manage and optimize your images smarter.</p>
<p><strong>AI Assistant:</strong></p>
<ul>
<li>Analyzes your image sizes and recommends which to enable or disable</li>
<li>Detects redundant retina sizes already covered by other thumbnails</li>
<li>Understands srcset behavior—sizes don’t need to be pixel-perfect</li>
<li>Requires <a href="https://wordpress.org/plugins/ai-engine/" rel="ugc">AI Engine</a> plugin</li>
</ul>
<p><strong>Upscaling (via Claid.ai):</strong></p>
<ul>
<li>Generate retina images without 2x source files</li>
<li>Create thumbnails larger than the original image</li>
<li>Multiple upscaling modes (Smart Enhance, Digital Art, Photo, etc.)</li>
<li>Automatic or manual processing</li>
</ul>
<h3>⚙️ Image Tools</h3>
<p>The Image Tools dashboard lets you manage all your media in one place—regenerate thumbnails, build retina images, generate WebP/AVIF, and more, individually or in bulk.</p>
<p><strong>Regenerate Thumbnails:</strong></p>
<ul>
<li>Bulk regenerate all thumbnails</li>
<li>Progress tracking for large libraries</li>
<li>Preserves custom crops</li>
<li>Updates retina and WebP versions automatically</li>
</ul>
<p><strong>Replace Images:</strong></p>
<ul>
<li>Swap images directly from Media Library</li>
<li>Drag & drop replacement in dashboard</li>
<li>Maintains all metadata and links</li>
<li>Updates all thumbnails instantly</li>
</ul>
<p><strong>Manage Sizes:</strong></p>
<ul>
<li>View all registered image sizes</li>
<li>Disable unwanted sizes (medium_large, 1536×1536, etc.)</li>
<li>Create custom sizes</li>
<li>Track which sizes are enabled per image</li>
</ul>
<p><strong>Disable Image Threshold:</strong></p>
<ul>
<li>Stop WordPress from creating “-scaled” versions</li>
<li>Keep your original full-size images intact</li>
</ul>
<h3>Pro Features</h3>
<ul>
<li>Full-size retina images</li>
<li>Full-size WebP/AVIF conversion</li>
<li>Priority support</li>
</ul>
<h3>Why Perfect Images?</h3>
<p><strong>Essential Foundation</strong><br />
Every WordPress site needs proper image size management and thumbnail control. Perfect Images makes it simple, giving you the baseline image handling WordPress should have included.</p>
<p><strong>Modular & Lightweight</strong><br />
Start with just image size management and thumbnail regeneration. Enable retina, WebP, Easy IO, or AI modules only when you need them. No bloat, no unnecessary features.</p>
<p><strong>Works with Everything</strong><br />
Compatible with WooCommerce, page builders, galleries, and any theme. It uses WordPress’s native image handling, so there are no conflicts.</p>
<p><strong>No Database Bloat</strong><br />
Everything works through WordPress’s existing metadata structure. No custom tables, no performance overhead.</p>
<p><strong>Built for Real Workflows</strong><br />
Developed by someone who manages dozens of WordPress sites. Every feature solves a real problem we’ve encountered over years of WordPress development.</p>


Perfect Images: Regenerate Thumbnails, Image Sizes, WebP & AVIF

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Optimize image sizes, regenerate thumbnails, enable retina, convert to WebP/AVIF, or use cloud optimization. An essential image toolkit.

AVIF Local Support vs Perfect Images: Regenerate Thumbnails, Image Sizes, WebP & AVIF