Samir Manjiyani

Mohammed Salman Khan

Add your custom CSS or javascript/jquery using “Custom WP CSS & JS” plugin to any theme without creating any extra CSS or JS files.
Benefits of Plugin 
* Easy to use. 
* Option to select placement (header or footer) to insert your custom JS. 
* Built with Syntax Code Highlighter. 
* Option to add custom CSS for WP Dashboard.
For Syntax Code Highlighter credits goes to <a href="https://codemirror.net/5/" rel="nofollow ugc">codemirror.net</a>

Custom WP CSS & JS

otimo

A lightweight plugin to add custom CSS, JS/Javascript to any theme. This plugin also gives you an ability to insert JS in header or footer.

Nico

It replaces all assets with versions available on jsDelivr. No options, nothing to configure, just works.
The code needs to be openly hosted on NPM, Github or wordpress.org.
This plugin adds a little a invisible button on the admin bar on the top right, left of “Howdy, Name”. You can click that and see the assets loaded from jsDelivr.
<h4>Support me</h4>
It took me a lot of time to come up with this plugin and I had many iterations over various different approaches how to do this until I came up with this working solution that also does not need much code. I know the official plugin was abandoned years ago and I looked at complicated bloated code and did not even feel like learning what its doing and never looked at it again and started from scratch.
Please check out my commercial plugin and level up your video embeds with <a href="https://nextgenthemes.com/plugins/arve-pro/" rel="nofollow ugc">ARVE Pro</a> or <a href="https://nextgenthemes.com/donate/" rel="nofollow ugc">Donate here</a>

NextGenThemes jsDelivr CDN

Free CDN for for all assets from wordpress.org Github and NPM.

Custom WP CSS & JS vs NextGenThemes jsDelivr CDN