🚀 Automatically convert images to WebP format in WordPress and improve website speed, performance, and SEO — without any manual work.

Symmetria Software

Symmetria Smart Images

Effortless alt-text, captions, smart crops and optimization by AI while you upload images.

Passionate Brains

Lightning Load Speed Optimization

This plugin will significantly boost your WordPress website’s performance by converting existing images to WebP format and enabling lazy loading.

Pixellize

<p><strong>Pixellize Image Optimizer</strong> is a fast, lightweight, and beginner-friendly WordPress plugin that automatically converts uploaded images into modern WebP format.</p>
<p>It ensures that your website loads faster by replacing original image URLs across your entire site — including post content, image tags, and responsive srcset.</p>
<p>⚡ No manual conversion. No complex setup. Just upload and optimize.</p>
<h3>🔥 Key Features</h3>
<p>✅ Automatic WebP conversion on image upload<br />
✅ Bulk optimize images already in your library, with a live progress bar and background processing<br />
✅ Optimize a single page’s images on demand from the admin toolbar<br />
✅ Supports JPG, JPEG, PNG, BMP, and AVIF<br />
✅ Skips images already in WebP format<br />
✅ Smart fallback to Imagick if GD is unavailable<br />
✅ Adjustable WebP quality (0–100, default: 85)<br />
✅ Optional maximum image dimension to scale down large uploads before conversion<br />
✅ Replace image URLs in:</p>
<ul>
<li>Attachment tags</li>
<li>srcset (responsive images)</li>
<li>Post/page content</li>
</ul>
<p>✅ Keep originals and add WebP for every size, or replace and delete to save storage<br />
✅ Restore a single image back to its original from the Media Library<br />
✅ Keeps original file safe if conversion fails<br />
✅ Prevents duplicate conversions<br />
✅ Activation blocked if no supported library (GD/Imagick) is found</p>
<h3>🚀 Why Use This Plugin?</h3>
<ul>
<li>Improve <strong>Core Web Vitals (LCP, CLS)</strong></li>
<li>Boost <strong>SEO rankings</strong></li>
<li>Reduce <strong>page load time</strong></li>
<li>Save <strong>server storage</strong></li>
<li>Deliver <strong>modern image formats automatically</strong></li>
</ul>
<h3>Requirements</h3>
<ul>
<li>PHP 7.4 or higher</li>
<li>PHP GD extension (recommended) or Imagick</li>
</ul>
<h3>Usage</h3>
<ul>
<li>Upload images normally via Media Library</li>
<li>Images are automatically converted to WebP</li>
<li>Customize settings under <strong>Tools <span aria-hidden="true" class="wp-exclude-emoji">→</span> Pixellize Image Optimizer</strong></li>
<li>Already converted images are skipped automatically</li>
</ul>
<h3>Roadmap</h3>
<ul>
<li>Serve WebP everywhere, including page builders and ACF fields, via output rewriting</li>
<li>CDN URL rewriting (use your own CDN host for images)</li>
<li>AVIF output alongside WebP</li>
<li>Lazy loading integration</li>
</ul>
<h3>License</h3>
<p>This plugin is licensed under GPL v2 or later.</p>
<h3>Author</h3>
<p><strong>Pixellize</strong><br />
🌐 https://pixellize.io</p>


Alternatives to Pixellize Image Optimizer

Top alternatives