salubrio

Intended users: Template Designers, Developer, Admins
If you wish to add any custom HTML to each page’s header, then this plugin is for you.
This is useful for verifying you are the owner of the website to services such as Mailchimp or Google. You can quickly add the verification codes to your page header without having to edit your site’s template.
In general, you can add custom CSS, a link to an external JavaScript file or something else. While it is generally recommended to create a child template if you’re going to make extensive, permanent changes to a template, there may be instances where a small change or two is needed that wouldn’t justify the creation of a child template—or your current template might not support child templates. You should nearly always avoid editing a template directly, because your changes will be lost when you next update the template.
This plugin is not affected by template changes.
<h3>Acknowledgements</h3>
Plugin Icon (CC BY 3.0) by <a href="https://www.iconfinder.com/denir" rel="nofollow ugc">DeniShop</a>

Add Code To Head

Add custom JavaScript/HTML/CSS codes to the page head without editing the template.

Barry Kooij

Never5

What The File adds an option to your toolbar showing what file and template parts are used to display the page you’re currently viewing.
You can click the file name to directly edit it through the theme editor, though I don’t recommend this for bigger changes.
What The File supports BuddyPress and Roots Theme based themes.
More information can be found <a href="http://www.barrykooij.com/what-the-file/" rel="nofollow ugc">here</a>.
<h4>Looking for a great related posts plugin for WordPress?</h4>
Another plugin I’ve built, that I’m very proud of is Related Posts for WordPress. Related Posts for WordPress offers you the ability to link related posts to each other with just 1 click! And it’s 100% free! <a href="https://wordpress.org/plugins/related-posts-for-wp/" rel="ugc">Check it out on the WordPress repository.</a>

What The File

This is great plugin to check templates file. It saves a lot of development time with 100% accuracy for me. Thanks to the developers team who worked for this plugin. Every WordPress developer should have this installed during development tier of their website.

Simple, but superb plugin

cool. very helpful !!!!

What The File is the best tool to find out what template parts are used to display the page you're currently viewing!

Add Code To Head vs What The File