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.

wpwox

This plugin provides custom meta boxes in default Pages and Posts of wordpress where you can enter any scripts for each respective pages or posts, for example:
<ol>
<li>Google Adwords conversion tracking</li>
<li>Google Adsense ads</li>
<li>Any Javascripts</li>
<li>Page/post specific CSS codes</li>
<li>Normal HTML codes</li>
<li>Unlimited possibilites</li>
</ol>
You will get a meta box under each of page and post. The Meta box will have 4 Text Boxes, in each section you can add codes for:
<ol>
<li>Before Content Field</li>
<li>Below Content Field</li>
<li>Scripts to add in tag</li>
<li>Scripts to add in footer below tag</li>
</ol>
Plugin Documentation: 
http://www.wpwox.com/wp-plugin/custom-script-integration/

Custom Script Integration

This plugin provides custom meta box to add Google Adword conversion, ads, custom css and scripts in individual pages/posts.

Custom CSS, JS & PHP vs Custom Script Integration