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Sityn Image Optimizer integrates with the WordPress media uploader and optimizes image files in the browser before upload. It supports resizing, quality control, and conversion to WebP, JPG, PNG, and AVIF where supported.
The plugin processes selected images client-side, then passes the optimized files to the normal WordPress media upload flow.

Sityn Image Optimizer

Optimizes image uploads in the browser before WordPress receives them.

Jackson Jonah

Skyspeed is a robust, enterprise-grade image optimization solution designed to make your WordPress site lighter and faster without sacrificing visual quality.
Unlike other plugins that bloat your dashboard with upsells, Skyspeed is focused purely on performance. It automatically intercepts every image you upload, resizes it to a sane maximum width, and converts it to modern, high-compression formats like AVIF and WebP.
<h3>🚀 Key Features</h3>
<ul>
<li>Smart Format Selection: Automatically checks if your server supports AVIF (the newest, most efficient format). If not, it falls back to WebP, and finally to the original format if needed.</li>
<li>Intelligent Resizing: Automatically resizes massive uploads (e.g., 6000px wide photos from phones) to a web-ready Max Width (default: 1920px), saving megabytes instantly.</li>
<li>Safety First (Automatic Backups): We care about your data. Every original image is safely backed up to a dedicated folder (<code>uploads/original-backups/</code>) before any optimization occurs.</li>
<li>One-Click Restore: Made a mistake? Hover over any image in the Media Library and click “Restore Original” to revert instantly.</li>
<li>Bulk Optimizer: Process your entire existing media library in the background with our AJAX-powered batch processor. Includes a sleek circular progress bar!</li>
<li>Live Preview: Don’t guess quality settings. Use the Live Preview tool to compare “Before vs. After” quality and file size on a real image before applying settings globally.</li>
<li>Analytics Dashboard: Track exactly how much disk space you’ve saved with our built-in savings calculator and dashboard widget.</li>
</ul>
<h3>⚡ Why AVIF?</h3>
AVIF is the successor to WebP. It offers superior compression (often 20-30% smaller than WebP) with better visual fidelity. Skyspeed is one of the few free plugins that prioritizes AVIF support out of the box.

Skyspeed – Image Optimizer, WebP & AVIF Converter

Boost your site speed automatically. Resizes huge uploads, converts images to next-gen WebP & AVIF formats, and safely backs up originals.

Sityn Image Optimizer vs Skyspeed – Image Optimizer, WebP & AVIF Converter