vexr

Script Surgery gives you a visual, actionable view of every script and style loaded on your WordPress site — broken down by page type (homepage, single post, product, cart, etc.).
<h4>What it does</h4>
Visual asset inventory 
See every enqueued script and style on each page type: the handle, which plugin or theme added it, file size, whether it loads in <code><head></code> (render-blocking) or footer, and async/defer status.
Source attribution 
Each asset is attributed to: WordPress Core, a plugin (by name), your theme, or an external CDN. No guesswork.
Per-page-type disable rules 
Disable any script or style on specific page types with one click. Elementor scripts loading on your checkout page? Slider scripts loading on cart? Disable them — no code required.
Render-blocking detection 
Scripts loading in <code><head></code> without async or defer are flagged as render-blocking. Styles are flagged similarly. Fix the highest-impact issues first.
Bulk actions 
“Only on this page” — disable a script everywhere except the current page type in one click. Reset individual or all rules at once.
<h4>How data is collected</h4>
Data is captured automatically when a logged-in administrator visits any frontend page. No cron jobs, no external requests. The WordPress admin bar shows a ⚗ indicator on each page type so you know what’s been captured.
<h4>Privacy</h4>
Script Surgery only runs for logged-in administrators. No data is sent externally. All data is stored in your own database (transients + one options entry).

Script Surgery

See exactly what scripts and styles load on each page type — which plugin added them, their size, whether they block rendering — and disable them per  …

nigro.simone

This small plugin (2 Kb) moves JavaScript to the footer and improve page load times. 
Note: this only works if your other plugins and theme add the JavaScripts correctly.
Configurations are not required! You just have to install it and after the plugin does it all, none further action it’s required.

Speed Up – JavaScript To Footer

Move all the possible JavaScript files from head to footer and improve page load times.

Script Surgery vs Speed Up – JavaScript To Footer