fedmich

This plugin will insert urls of JavaScript or CSS stylesheet files added into a particular posts or page via Custom Fields. 
The scripts (link stylesheet) tags will be then added in your tag 
It doesn’t require other plugin and it can be used as is.

Insert JS or CSS in post via Custom Field

This plugin will insert urls of JavaScript or CSS stylesheet files added into a particular posts or page via Custom Fields.

Tom Anbinder

Pablo Pacheco

WPFactory

Kousik Mukherjee

Omar AlDabbas

Algoritmika

Custom CSS, JS & PHP is a lightweight plugin that lets you add:
<ul>
<li>custom CSS (front-end and/or back-end),</li>
<li>custom JavaScript (front-end and/or back-end), and</li>
<li>custom PHP.</li>
</ul>
<h3>🗘 Feedback</h3>
<ul>
<li>We are open to your suggestions and feedback. Thank you for using or trying out one of our plugins!</li>
</ul>

Custom CSS, JS & PHP

Just another custom CSS, JavaScript & PHP tool for WordPress.

Insert JS or CSS in post via Custom Field vs Custom CSS, JS & PHP