Shakib R Khan

Super Duper Image Auto Optimizer compresses newly uploaded images (JPEG/PNG/WebP), strips EXIF, and generates modern formats (WebP/AVIF when supported). It also includes a one-click bulk optimizer in the admin and a WP-CLI command for existing media.
Highlights 
– Automatic optimization for new uploads (original + sizes) 
– One-click bulk optimization (batched via AJAX, resume) 
– WebP generation and AVIF when supported 
– Imagick preferred; GD fallback 
– No third-party services or tracking 
– WP-CLI: <code>wp sdiao:bulk</code>
<h3>Usage</h3>
<ul>
<li>Bulk optimize: Media → Super Duper Image Auto Optimizer → Bulk Optimize.</li>
<li>WP-CLI: <code>wp sdiao:bulk</code>.</li>
</ul>
<h3>FAQs</h3>
= Do I need to drag and drop into the plugin? = 
No. It hooks into normal uploads and runs automatically.
<h4>Does it generate WebP/AVIF for all sizes?</h4>
Yes (AVIF requires Imagick with AVIF support).
<h3>Privacy</h3>
Processes images locally; stores only minimal bulk progress (<code>sdiao_bulk_state</code>). No telemetry.
<h3>Security</h3>
Nonce + capability checks on AJAX; escaped admin output; no remote code.

Super Duper Image Auto Optimizer

Reduce image sizes on upload and in bulk, strip EXIF, and generate WebP/AVIF with Imagick or GD — no external APIs.

riotweb

About
This plugin will instantly speed up your WordPress website when the plugin is activated. 
Gzip is the most popular and effective compression method currently available and generally reduces the response size by about 70%!
Important 
This function changes your .htaccess file. In some cases this might result in a 500 error. If you’re not sure whether you can run Gzip ask your hosting company. 
The only way to fix this is to be able to edit the .htaccess file from outside WordPress (via FTP).
Gzip Checker 
NEW – You can now check if Gzip is enabled for your website. Go to “settings” and select the “Instant Gzip Compression” tab.

Instant Gzip Compression

Speed up your Wordpress website with this Gzip compression plugin.

Super Duper Image Auto Optimizer vs Instant Gzip Compression