thaikolja

Thumbnails Cleaner helps you keep your WordPress installation tidy by removing and regenerating thumbnails.
You can control all functions through the plugins’ main page found under “Tools”. You can:
<ul>
<li>Analyze your uploads directory, giving you an overview how many original files and thumbnails there are.</li>
<li>Clean thumbnails which means deleting them while keeping the original files.</li>
<li>Restore thumbnails to start out with a clean uploads directory. This function requires the plugin <a href="https://wordpress.org/plugins/regenerate-thumbnails/" rel="ugc">Regenerate Thumbnails</a>.</li>
<li>Create backups of your uploads directory to keep your files safe in the unlikely event that there is a problem.</li>
<li>Restore backups in case you have lost a file that was not supposed to be deleted.</li>
</ul>
Please see the <a href="https://www.koljanolte.com/wordpress/plugins/thumbnail-cleaner/documentation/" rel="nofollow ugc">official website</a> for a full 
documentation.

Thumbnail Cleaner

Cleans up your WordPress installation by removing and regenerating thumbnails.

Gioxx

The plugin provides the administrator with a convenient maintenance page, called E-mail User Cleaner, which will be navigable through the WordPress administrative interface. 
From the E-mail User Cleaner page you will be able to: 
 – generate and download a CSV file containing a complete list of registered users on the WordPress instance. 
 – Specify one or more e-mail addresses (one address per line), corresponding to registered users on the WordPress instance, to be deleted from the system. 
 – Identify duplicated users (based on criteria that checks first name, last name and e-mail address) and decide to select and delete them, also referring to the last login date to the WordPress installation.

E-mail User Cleaner

Delete users corresponding to the specified email addresses.

Thumbnail Cleaner vs E-mail User Cleaner