Yephy

<p>JZB Image Auto AVIF is an image optimization engine that helps WordPress users automatically generate compressed AVIF and WebP images. It does this without altering the original media library files, utilizing an independent cache directory architecture to safely serve optimized images to browsers.</p>
<h3>Core Features:</h3>
<ul>
<li><strong>Non-destructive Cache</strong>: Generated AVIF and WebP files are stored in a separate <code>wp-content/uploads/jzb-image-auto-avif/</code> directory. Uninstalling the plugin instantly restores your original media library.</li>
<li><strong>Dual-Core Compression</strong>: Configure distinct quality settings for AVIF and WebP formats. Supports fine-grained adjustment and switching between lossy and lossless modes.</li>
<li><strong>HTML Output Buffering</strong>: Dynamically replaces image links in the front-end HTML source without relying on <code>.htaccess</code> or <code>nginx.conf</code> rewrite rules.</li>
<li><strong>Native Intervention Control</strong>: Provides toggles to prevent WordPress from generating unnecessary multi-size thumbnails or applying <code>-scaled</code> changes, helping to save server disk space.</li>
<li><strong>Media Library Controls</strong>: Includes AJAX buttons in the Media Library list view to generate AVIF/WebP for individual old images or cleanly delete legacy thumbnails.</li>
<li><strong>Dynamic Loading Thresholds</strong>: Recommends sizing configurations based on your server’s available CPU cores and RAM to prevent server timeouts during heavy image conversion.</li>
</ul>


JZB Image Auto AVIF

Automatically optimize WordPress images to AVIF and WebP using an independent mirror cache and safe output buffering.

Freemius

levmedia123

<p>No account. No API. No images leaving your server.</p>
<p>Shrinkwell helps you compress images, convert them to modern formats and reduce backup size by finding possibly unused media in your WordPress database. Processing stays local, with no media files uploaded externally for optimization.</p>
<p>Run a 5-image test, review the results, then optimize your full media library with more confidence.</p>
<h4>Built for agencies and freelancers handing off client sites</h4>
<p>Shrinkwell was designed for the moment before you hand a site back to a client and need to prove the optimization work was actually done.</p>
<ul>
<li>Safe test run — optimize 5 images first and inspect the results before touching the full library.</li>
<li>Original backups — keep originals before files are replaced, then restore individual images or the full library when needed.</li>
<li>Delivery proof — scan a live page URL and confirm that WebP files are actually being served, not just generated.</li>
<li>SEO scan — find missing alt text and weak filenames without auto-rewriting anything.</li>
</ul>
<h4>Compression that doesn’t guess</h4>
<p>Choose a named compression profile or dial in your own settings:</p>
<ul>
<li>Balanced — solid savings with sensible quality preservation. Good for most sites.</li>
<li>High — stronger reduction. Best for image-heavy sites where speed matters most.</li>
<li>Near lossless — minimal quality change. Useful for portfolios and product photography.</li>
<li>Custom — a 1–10 strength slider for full control.</li>
</ul>
<p>Shrinkwell can generate WebP automatically and serve it with a safe JPEG/PNG fallback, with no .htaccess edits and no CDN required.</p>
<h4>What you get in the free version</h4>
<ul>
<li>Convert images to WebP and AVIF within the monthly free limit</li>
<li>Manually bulk-optimize JPEG and PNG within the monthly free limit</li>
<li>Preserve existing WebP media items instead of recompressing them</li>
<li>Resize oversized images to a maximum width and height</li>
<li>Strip EXIF/metadata where supported</li>
<li>Optimize thumbnails alongside originals</li>
<li>Generate and serve WebP with automatic JPEG/PNG fallback</li>
<li>Restore individual images or run a bulk restore</li>
<li>Run a Media Cleanup database scan and preview possibly unused images</li>
<li>Review an optimization log with bytes saved, skipped images, and skip reasons</li>
<li>Run a frontend delivery test to confirm active WebP delivery</li>
<li>Run a site scan and apply recommended settings in one click</li>
<li>Works with GD and Imagick, with no external service required</li>
</ul>
<h4>Shrinkwell Pro</h4>
<p>Shrinkwell Pro unlocks unlimited optimization and safe Media Cleanup. That includes unlimited WebP and AVIF optimization, auto-optimize on upload, background bulk optimization, safe bulk cleanup actions, Shrinkwell Trash and advanced cleanup tools.</p>
<h4>What Shrinkwell doesn’t do</h4>
<p>Shrinkwell does not send media files to an external API for optimization, require an account, charge per image, or rewrite alt text or filenames automatically.</p>
<h3>Privacy</h3>
<p>Images are optimized on your own server. The free plugin does not transmit media files externally for optimization.</p>
<h3>License & Assets</h3>
<p>Shrinkwell is licensed under GPLv2 or later.</p>
<p>The included Shrinkwell logo and wordmark are original Levmedia brand assets and are distributed with this plugin under GPLv2 or later.</p>


Shrinkwell Image Optimizer

Optimize images with WebP and AVIF, then review possibly unused media safely.

JZB Image Auto AVIF vs Shrinkwell Image Optimizer