Mikael Korpela

Miguel Lezama

A tool to observe how a page loads in different themes simultaneously. 
Useful for debugging plugins or Gutenberg blocks.
How to Use:
<ol>
<li>Install several themes you’d like to check out.</li>
<li>Create a new page.</li>
<li>Navigate to Tools → Back To The Theme</li>
<li>Choose if you want to demo editor- or view side.</li>
<li>Select the themes you’d like to check out.</li>
<li>Choose the page you just created. This page will be previewed with all the themes you’ve selected.</li>
<li>Click Do it!.</li>
<li>Scroll to see the page rendered with all the themes you selected.</li>
</ol>
You’ll see your page load with different themes in a bunch of iframes for handy preview and debugging.
A nice list of popular themes to test:
<pre><code>`
</code></pre>
wp theme install \ 
 astra \ 
 colormag \ 
 customizr \ 
 generatepress \ 
 hestia \ 
 hueman \ 
 oceanwp \ 
 shapely \ 
 storefront \ 
 sydney \ 
 twentyeleven \ 
 twentyfifteen \ 
 twentyfourteen \ 
 twentynineteen \ 
 twentyseventeen \ 
 twentysixteen \ 
 twentyten \ 
 twentythirteen \ 
 twentytwelve \ 
 vantage 
 `
See docs for <a href="https://developer.wordpress.org/cli/commands/theme/install/" rel="nofollow ugc">wp theme install</a>.
<a href="https://github.com/simison/back-to-the-theme" rel="nofollow ugc">Plugin’s source code on GitHub</a>.

Back To The Theme

See a page with different themes all at once, just like that!

Dhanendran Rajagopal

This plugin allows you to quickly swap between user roles in WordPress at the click of a button. You’ll be instantly switched to the new user role. This is handy for test environments where you regularly log out and in between different accounts, or for administrators who need to switch between multiple accounts to test the feature in different user roles.
<h3>Features</h3>
<ul>
<li>Switch Role To: Instantly switch to any user role from the admin bar at top.</li>
<li>Switch back: Instantly switch back to your originating role.</li>
<li>Compatible with WordPress, WordPress Multisite, WooCommerce.</li>
</ul>
<h3>Security</h3>
<ul>
<li>Only users with the ability to edit other users can switch user roles. By default this is only Administrators on single site installations, and Super Admins on Multisite installations.</li>
</ul>
<h3>Usage</h3>
<ol>
<li>Once plugin is activated, you will see Switch Role To in the top admin bar.</li>
<li>Clicking this will bring the list of user roles available in the system.</li>
<li>Click on any user role you want to test as.</li>
<li>You can switch back to your originating user role via the Switch back link on the top admin bar.</li>
</ol>

User Role Switcher

Instant switching between user roles in WordPress.

Back To The Theme vs User Role Switcher