asadkn

A plugin for Advanced Users to Optimize CSS Delivery, Remove Unused CSS, Optimize Javascript Delivery with defer or delay load JS. 
The perfect toolkit for improving your Core Web Vitals and overall website performance.
WARNING: It’s a powerful speed optimization plugin that’s meant for power users who know what they’re doing.
Features:
<ul>
<li>Optimize CSS: Fix Render-Blocking.</li>
<li>Minify and Inline CSS.</li>
<li>Remove Unused CSS (Advanced).</li>
<li>Optimize JS: Fix Render-Blocking with defer.</li>
<li>Delay Load some JS until user interaction.</li>
<li>Adds resource hints for faster Google Fonts.</li>
<li>Built-in optimizations for Elementor (free version).</li>
<li>Built-in optimizations for WPBakery Page Builder. </li>
<li>Compatible with all themes and plugins.</li>
<li>Supports all modern browsers (no IE11 support).</li>
<li>Optimized code benchmarked for performance.</li>
<li>Built-in cache for processing.</li>
<li>Compatible with cache plugins (disable their JS and CSS optimizations).</li>
<li>API and hooks for theme & plugin authors.</li>
</ul>

Debloat – Remove Unused CSS, Optimize JS

Remove Unused CSS, Optimize CSS, Optimize JS and speed up your site.

mottodesignstudio

With build tools like <a href="https://purgecss.com/" rel="nofollow ugc">purgeCSS</a> used by frameworks like <a href="https://tailwindcss.com/" rel="nofollow ugc">TailwindCSS</a> the need to remove all of the unused CSS classes from built CSS files has become an important factor.
However, these tools can only look in source files for classes that should be kept. Therefore any classes generated by WordPress, such as classes used in the post editor will not be considered and overpurging occurs.
This plugin allows solves this problem by:
<ul>
<li>Logging all classes from page requests</li>
<li>Generating a text file that can be used in your build process</li>
</ul>

Blaze CSS

Generate a text file of all the classes used in your WordPress site.

Debloat – Remove Unused CSS, Optimize JS vs Blaze CSS