SPINX Digital

Convert JPEG, PNG & GIF to WebP and bulk-optimize your Media Library entirely on your own server. No external services. No data sent. No quotas.
<h3>🚀 Local-First WebP Conversion For WordPress</h3>
SPINX Digital Image Converter generates lightweight WebP versions of your JPEG, PNG, and GIF uploads — including every WordPress-generated thumbnail size — so your pages load faster and your images stay lighter.
Unlike cloud-based optimizers, all processing happens on your own server using PHP’s GD or ImageMagick extension. Nothing is uploaded to a third party, no account is required, and there are no monthly limits or quotas. Your images never leave your hosting environment.
It’s built for site owners who want faster image delivery, a safe and reversible workflow, and a clear, honest view of exactly what was converted, skipped, restored, or failed — all from a single dashboard.
<h3>✨ Why Choose SPINX Digital Image Converter?</h3>
<ul>
<li>100% Local Processing — Images are converted on your server with GD or ImageMagick. No external API calls, ever.</li>
<li>Complete Privacy — No user data is collected or transmitted. No third-party libraries bundled.</li>
<li>Server Limit — Convert unlimited images, subject to your server’s available resources and processing capacity. </li>
<li>Fully Reversible — Restore originals and remove generated WebP files at any time, per image or in bulk.</li>
<li>Full Transparency — A real-time dashboard tracks converted, pending, failed, and storage-saved totals.</li>
</ul>
<h3>🖼️ Features at a Glance</h3>
<ul>
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Automatic Conversion on Upload — New JPEG, PNG, and GIF uploads are converted to WebP automatically. No manual steps, no forgotten images.
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Bulk Conversion for Existing Media — Optimize your entire Media Library in batches. The plugin prepares the image list, processes it in manageable chunks, and updates progress live in the admin UI — ideal for large libraries.
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Thumbnail Conversion Included — Every WordPress-generated image size is converted alongside the original attachment, so all served variants benefit from WebP.
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Choice of Conversion Engine — Use GD or ImageMagick, with automatic detection based on what’s available on your host and your selected settings.
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Optimized WebP Quality (Fixed 75%) — The plugin converts every image at a balanced, fixed 75% WebP quality for an ideal size-to-fidelity trade-off.
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Media Library Integration — Convert or restore any individual image directly from Media Library row actions and attachment-level controls.
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One-Click Restore — Switch delivery back to your original media files and remove generated WebP files whenever you need to.
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REST API Access — Built-in REST endpoints for stats, health checks, logs, settings, exports, and per-image actions — all protected with nonce and capability checks.
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</ul>
<h3>📊 Know Exactly What’s Happening</h3>
Most optimization tools hide the details. SPINX Digital Image Converter gives you a dedicated dashboard with running totals for converted, pending, failed, and storage saved, plus a status table during bulk runs. You always know what’s been processed, what’s left, and how much space you’ve reclaimed.
<h3>🔒 Privacy & External Services</h3>
This plugin does not contact any external servers. All image processing happens on your own server using PHP’s GD or ImageMagick extension. No third-party libraries are bundled, and no user data is collected or transmitted. What runs on your site stays on your site.
<h3>💡 Best For</h3>
<ul>
<li>Blogs, marketing sites, portfolios, and eCommerce stores that want fast, local WebP generation.</li>
<li>Site owners who need bulk conversion without relying on third-party optimization services.</li>
<li>Privacy-conscious teams who require all media processing to stay on their own infrastructure.</li>
<li>Anyone who wants clear visibility into image status and real storage savings.</li>
</ul>

SPINX Digital Image Converter

Convert JPEG, PNG & GIF to WebP and bulk-optimize your Media Library entirely on your own server. No external services. No data sent. No quotas.

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.

SPINX Digital Image Converter vs Squeeze – Image Optimization & Compression, WEBP Conversion