Codcy

Codcy Image Optimizer converts your existing JPEG and PNG images to WebP format in bulk — directly on your server, with no third-party API or paid subscription required.
WebP images are significantly smaller than JPEG and PNG files (typically 60–95% smaller), which leads to faster page loads, lower bandwidth usage, and better Core Web Vitals scores.
How it works:
<ol>
<li>Scan — Analyzes your entire Media Library. Shows total image count, file size, and format breakdown before any changes are made.</li>
<li>Review — You decide when to start. Nothing is changed until you click Start.</li>
<li>Optimize — Converts images in batches of 20. Originals are backed up automatically.</li>
<li>Report — A detailed summary shows converted count, space saved, average compression rate, and any errors.</li>
</ol>
Key features:
<ul>
<li>Converts JPEG and PNG to WebP</li>
<li>Automatic backup of original files to <code>uploads/codcy-image-optimizer/backup/</code></li>
<li>Skips images where WebP would be larger than the original</li>
<li>Fixes EXIF orientation automatically (Imagick)</li>
<li>Resumes from where it left off if interrupted</li>
<li>Does not alter image dimensions or crop ratio</li>
<li>No external API, no account required</li>
<li>Works with Imagick (preferred) or GD Library</li>
</ul>
What it does NOT do (intentionally):
<ul>
<li>Does not resize images</li>
<li>Does not process GIF files (may contain animation)</li>
<li>Does not delete backups automatically</li>
</ul>

Codcy Image Optimizer

Bulk convert JPEG and PNG images to WebP. No external service. Runs entirely on your server with automatic backup.

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>
<li>
Automatic Conversion on Upload — New JPEG, PNG, and GIF uploads are converted to WebP automatically. No manual steps, no forgotten images.
</li>
<li>
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.
</li>
<li>
Thumbnail Conversion Included — Every WordPress-generated image size is converted alongside the original attachment, so all served variants benefit from WebP.
</li>
<li>
Choice of Conversion Engine — Use GD or ImageMagick, with automatic detection based on what’s available on your host and your selected settings.
</li>
<li>
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.
</li>
<li>
Media Library Integration — Convert or restore any individual image directly from Media Library row actions and attachment-level controls.
</li>
<li>
One-Click Restore — Switch delivery back to your original media files and remove generated WebP files whenever you need to.
</li>
<li>
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.
</li>
</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.

Codcy Image Optimizer vs SPINX Digital Image Converter