Debloat – Remove Unused CSS, Optimize JS


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.


  • Optimize CSS: Fix Render-Blocking.
  • Minify and Inline CSS.
  • Remove Unused CSS (Advanced).
  • Optimize JS: Fix Render-Blocking with defer.
  • Delay Load some JS until user interaction.
  • Adds resource hints for faster Google Fonts.
  • Built-in optimizations for Elementor (free version).
  • Built-in optimizations for WPBakery Page Builder.
  • Compatible with all themes and plugins.
  • Supports all modern browsers (no IE11 support).
  • Optimized code benchmarked for performance.
  • Built-in cache for processing.
  • Compatible with cache plugins (disable their JS and CSS optimizations).
  • API and hooks for theme & plugin authors.


  1. Upload/Install and activate the plugin.
  2. Go to Settings > Debloat Optimize, and configure per your requirement.
  3. Clear all caches from any cache plugin you may have active.


22 Agustus 2023
I have tried them all; none of them are as good as this. This is the savior to all the CSS issues especially when it comes to removing unused CSS! I hope this plugin is always updated. Something that's even awesome is - it supports Oxygen Builder and Breakdance Builder! You must be a great person to make this available for free. God bless. I salute you! P.S. There are idiots posting bad reviews without knowing what they are even doing. Please ignore them. Cheers.
27 Juli 2023
Installed this plugin, did all of the recommended settings, and my page speed dropped to 17. It is 40 without the plugin. Why do people make plugins on Wordpress that do not even come close to what they claim it will do? Stop wasting our time.
11 Juli 2023
Great plugin, does exactly what it says it does, and nothing more. Exactly what I needed without adding a ton of bloat and complexity to my site. Thank you!
30 Mei 2023
This plugin was the only one that solved my dissatisfaction with litespeed and perfmatters UCSS. Developer notice: the differential of this plugin is the great integration with LiteSpeed ​​and Elementor. I finally got to the best of all worlds in UCSS.
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Kontributor & Pengembang

“Debloat – Remove Unused CSS, Optimize JS” adalah perangkat lunak open source. Berikut ini mereka yang sudah berkontribusi pada plugin ini.


Log Perubahan


  • Added: Support for media queries when unused CSS is removed.
  • Fixed: PHP warnings on PHP 8.2.
  • Fixed: Parsing complex CSS selectors with commas and several other complex rules.
  • Updated: Sabberworm CSS Parser to 8.4 with patches.


  • Fixed: A few minor PHP warnings / notices.
  • Improved: Elementor admin bar drop downs should render in delay JS.


  • Fixed: Error when malformed link tags with missing href.


  • Fixed: Google Fonts inline feature when additional parameters present in URL.
  • Improved: Strip unnecessary rel=stylesheet in inline styles.


  • Added: Option to defer inline scripts – useful if some dependent inline scripts not registered using WordPress enqueues.
  • Fixed: Defer inline scripts with jQuery if jquery-core is deferred.


  • Fixed: Delay/defer only replacing one instance with duplicated tags of the same URL and id.


  • Added: New filter debloat/should_process.
  • Improved: Skip converting already qualified URLs.
  • Bumped required PHP version to 7.1+.


  • Fixed: Some PHP notices under certain conditions.


  • Added: Maximum user interaction wait time for JS delay load feature.


  • Fixed: Disable processing in feeds and on missing HTML tag.


  • Fixed: Fatal error for Sabberworm lib and resolved/matched AMP plugin dependency.


  • Added: WP CLI Commands to empty caches.
  • Added: Google Fonts optimizations such as font-display: swap.
  • Added: Option to inline Google Fonts CSS.


  • Initial release.