Shakib R Khan

Super Duper Image Auto Optimizer compresses newly uploaded images (JPEG/PNG/WebP), strips EXIF, and generates modern formats (WebP/AVIF when supported). It also includes a one-click bulk optimizer in the admin and a WP-CLI command for existing media.
Highlights 
– Automatic optimization for new uploads (original + sizes) 
– One-click bulk optimization (batched via AJAX, resume) 
– WebP generation and AVIF when supported 
– Imagick preferred; GD fallback 
– No third-party services or tracking 
– WP-CLI: <code>wp sdiao:bulk</code>
<h3>Usage</h3>
<ul>
<li>Bulk optimize: Media → Super Duper Image Auto Optimizer → Bulk Optimize.</li>
<li>WP-CLI: <code>wp sdiao:bulk</code>.</li>
</ul>
<h3>FAQs</h3>
= Do I need to drag and drop into the plugin? = 
No. It hooks into normal uploads and runs automatically.
<h4>Does it generate WebP/AVIF for all sizes?</h4>
Yes (AVIF requires Imagick with AVIF support).
<h3>Privacy</h3>
Processes images locally; stores only minimal bulk progress (<code>sdiao_bulk_state</code>). No telemetry.
<h3>Security</h3>
Nonce + capability checks on AJAX; escaped admin output; no remote code.

Super Duper Image Auto Optimizer

Reduce image sizes on upload and in bulk, strip EXIF, and generate WebP/AVIF with Imagick or GD — no external APIs.

Bogdan Bendziukov

Looking for a WordPress image optimizer without an API key? Squeeze is a local WebP converter that lets you compress images in WordPress, convert uploads to WebP, and bulk compress your media library without ShortPixel-, Imagify-, or Smush-style monthly caps. Processing runs in your admin browser—unlimited squeezes, full privacy, and no uploads to third-party compression servers.
If you need a webp converter wordpress plugin, a shortpixel alternative without recurring API fees, or an image optimizer without api keys, Squeeze keeps optimization on your server and in your browser instead of a SaaS queue.
Unlike cloud-based plugins, Squeeze:
♾️ No compression limits — squeeze your entire Media Library, not just the first 100–500 images per month. 
☁️ No third-party servers — images never leave your site; processing happens locally in the browser (ideal for GDPR-sensitive and membership sites). 
⚡ Direct WebP conversion — convert JPG/PNG to WebP and replace the original file on disk (no duplicate copies cluttering storage). 
🖼️ Optimize on upload — compress in Gutenberg, GenerateBlocks, and the Voxel theme before files hit the server (Elementor on-upload squeeze is available in <a href="https://pluginarium.com/squeeze/#premium" rel="nofollow ugc">Premium</a>).
The result: smaller files, faster page loads, and lower hosting storage—without SaaS fees or API keys.
<a href="https://pluginarium.com/squeeze/" rel="nofollow ugc">Squeeze official website</a> | <a href="https://pluginarium.com/squeeze/squeeze-documentation/" rel="nofollow ugc">Plugin documentation</a>
<h3>🌟 New in 1.7.x</h3>
<ul>
<li>Direct WebP conversion: Convert JPG/PNG to WebP and replace originals—save storage without duplicate files.</li>
<li>Pre-upload compression: Shrink images in the browser before upload (Gutenberg, GenerateBlocks, Voxel create-post and gallery fields).</li>
<li>Three WebP delivery modes: Direct WebP, separate squeeze-webp folder with URL rewrite, or server-side delivery via .htaccess.</li>
<li>Voxel theme support: Pre-upload squeeze on multipart AJAX uploads in create-post and file/gallery fields.</li>
</ul>
<h3>✨ Key Features</h3>
<ul>
<li>Faster pages: Smaller images improve load time, Core Web Vitals, and mobile bandwidth use.</li>
<li>WebP conversion & serving: Convert to WebP and serve efficiently—choose Direct WebP, HTML URL rewrite, or .htaccess delivery for supported browsers.</li>
<li>Client-side squeezing: Compress in the browser; nothing is uploaded to external optimization servers.</li>
<li>Upload optimization: Compress on the fly during upload so optimized files land in your Media Library.</li>
<li>Gutenberg & GenerateBlocks: Squeeze images as you add them in the block editor.</li>
<li>Voxel theme: Compress before upload on Voxel create-post and file/gallery fields.</li>
<li>Bulk compression: Compress hundreds of Media Library images in one run (pause/resume supported).</li>
<li>Custom directory squeeze: Pick any folder under your site root and optimize all images inside it.</li>
<li>Exclusions: Skip images by URL or filename pattern (one per line).</li>
<li>Fine-tuned quality: Per-format tabs for JPEG, PNG, WebP, and AVIF (MozJPEG, OxiPNG-style PNG, and more).</li>
<li>Backup option: Keep a <code>.bak</code> copy to restore the original after squeezing.</li>
<li>Formats: JPEG, PNG, WebP, and AVIF.</li>
</ul>
<h3>⚜️ Premium Features</h3>
<ul>
<li>Image comparison in the Media Library (before/after sizes).</li>
<li>Resize originals to max width/height before squeeze.</li>
<li>Bulk squeeze from a page — all images used on one post or page.</li>
<li>Elementor integration — squeeze on upload while editing in Elementor.</li>
<li>CDN URL — map CDN image URLs to local files for all WebP delivery modes.</li>
<li>Priority support & updates</li>
</ul>
<a href="https://pluginarium.com/squeeze/#premium" rel="nofollow ugc">Explore Premium</a>
<h3>How does Squeeze work?</h3>
Open the Media Library, run Bulk Squeeze, or upload a new image — Squeeze runs Google Chrome team–backed codecs (the same family as Squoosh.app) inside your browser via Web Workers. No account, no API key, no off-site upload queue.
<a href="https://pluginarium.com/squeeze/squeeze-documentation/" rel="nofollow ugc">Full documentation</a>

Squeeze – Image Optimization & Compression, WEBP Conversion


Great plugin! I'd love webp support if possible.


Works great

Compress images in WordPress & convert to WebP — no API key, no quotas, no cloud. Unlimited local image optimizer; private browser-side compression.

Super Duper Image Auto Optimizer vs Squeeze – Image Optimization & Compression, WEBP Conversion