wpaluchmits

MITS Image Optimizer is a professional image optimization toolkit for WordPress. It compresses images automatically on upload, batch-converts your entire media library to WebP and AVIF, configures Apache to serve next-gen formats automatically, and scans your site for common technical SEO issues.
<h4>Features</h4>
Auto-Compress on Upload 
Every JPG/PNG above a configurable size threshold is automatically scaled and compressed before WordPress generates its thumbnail sizes. No extra steps needed.
Bulk Compression 
Run a background batch job to compress all existing images in your media library. Progress is tracked and the job runs asynchronously — it won’t block your browser.
WebP Converter 
Batch-convert all JPG/PNG/GIF files in your uploads directory to WebP format. Runs in the background using WP-Cron or a loopback HTTP request. Supports both Imagick and GD libraries.
AVIF Converter 
Convert images to AVIF — the next-generation format that can be 30–50% smaller than WebP. Requires Imagick 7+ with AVIF support or PHP 8.1+ with GD <code>imageavif()</code>. The plugin detects support automatically and warns you if AVIF is unavailable on your server.
Apache .htaccess Configuration 
One click adds <code>mod_rewrite</code> rules to your <code>.htaccess</code> so Apache automatically serves <code>.webp</code> files to browsers that support them, with no code changes required in your theme.
Image Dimensions Scanner 
Detects images ≥ 1600 px wide that are used in posts or as featured images. Helps you find oversized images that slow down page loads, along with their file sizes, dimensions, and WebP/AVIF conversion status.
Site Audit 
Scans your site for the most common technical issues: missing alt text, oversized images, missing SSL, outdated plugins, pages without Open Graph tags, and more. Results include actionable recommendations.
Dashboard Widget 
A compact stats panel on the WordPress admin dashboard showing compression savings, WebP/AVIF conversion counts, and a link to the optimizer.
<h4>Requirements</h4>
<ul>
<li>PHP 8.0+, WordPress 6.0+</li>
<li>GD or Imagick PHP extension (for WebP/compression)</li>
<li>Imagick 7+ with AVIF or PHP 8.1+ GD (for AVIF conversion)</li>
<li>Apache + <code>mod_rewrite</code> (for automatic WebP serving via <code>.htaccess</code>)</li>
</ul>
Developed and maintained by <a href="https://mits.pl" rel="nofollow ugc">MITS</a> — a Polish web agency specializing in WordPress performance and development.
<h4>Privacy</h4>
This plugin does not collect any personal data and does not make any external HTTP requests.

MITS Image Optimizer

Auto-compress images on upload, bulk convert to WebP & AVIF, manage .htaccess WebP serving, and audit your site — all in one plugin.

MyWebsiteAdvisor

ChrisHurst

Simple Optimizer Plugin for WordPress is a group of tools to assist you manage your WordPress website.
Check, Repair and Optimize the WordPress MySQL Database. 
Search for and Delete Spam, Revisions, Auto Drafts, Pending Comments and Transient Options.
<a href="http://MyWebsiteAdvisor.com/tools/wordpress-plugins/simple-optimizer/" rel="nofollow ugc">Upgrade to Simple Optimizer Ultra</a> for advanced features including:
<ul>
<li>Scheduled Automatic WordPress and Database Optimizations</li>
<li>Recieve email notification of the scheduled optimization status</li>
<li>Priority Support License</li>
</ul>
Check out the <a href="http://www.youtube.com/watch?v=3PU6g-vMdtM&hd=1" rel="nofollow ugc">Simple Optimizer Plugin for WordPress Video Tutorial</a>:
<iframe loading="lazy" title="Simple Optimizer for WordPress Video Tutorial" width="750" height="422" src="https://www.youtube.com/embed/3PU6g-vMdtM?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
Developer Website: http://MyWebsiteAdvisor.com/
Plugin Support: http://MyWebsiteAdvisor.com/support/
Plugin Page: http://MyWebsiteAdvisor.com/tools/wordpress-plugins/simple-optimizer/
Video Tutorial: http://mywebsiteadvisor.com/learning/video-tutorials/simple-optimizer-tutorial/
Requirements:
<ul>
<li>PHP v5.0+</li>
<li>WordPress v3.3+</li>
</ul>
To-do:

Simple Optimizer

Check, Repair and Optimize WordPress Database. Delete Spam, Revisions, Auto Drafts, Pending Comments and Transient Options.

MITS Image Optimizer vs Simple Optimizer