Elias Lackner

Upload Directory Cleaner scans through your WordPress upload directory searching for all files not being registered in your Media Library. After the scan, choose which files to delete from the list showing all unregistered files.
Features:
<ul>
<li>Archive Directory</li>
<li>Scan Directory (Settings: Exclude top-level directories and files from the scan or add custom ignore strings.)</li>
<li>Delete Files (Settings: Keep Thumbnails, Delete Empty Directories)</li>
</ul>

Upload Directory Cleaner

The UDC plugin allows you to scan and delete all unregistered files from your Wordpress upload directory.

Nikunj Soni

Easy WP Cleaner is user friendly plugin to clean unnecessary data from WordPress database like “revision”, “draft”, “auto draft”, “moderated comments”, “spam comments”, “trash comments”, “orphan postmeta”, “orphan commentmeta”, “orphan relationships”, “dashboard transient feed” and this plugin also allows you to optimize your WordPress database without any tool like phpMyAdmin.
<ul>
<li>It adds a settings page to “Dashboard”->”Easy WP Cleaner” where you can simply clean your WordPress database</li>
<li>It allows you to remove the unnecessary data within few seconds</li>
<li>Handy tool to keep your database clean with meaningful entries</li>
<li>It saves lots of space of your database</li>
</ul>
Usage :
<ol>
<li>Download and extract this plugin to <code>wp-content/plugins/</code></li>
<li>Activate the plugin through the ‘Plugins’ menu in WordPress</li>
<li>
“Dashboard”->”Easy WP Cleaner” 
Usage :
</li>
<li>
Download and extract this plugin to <code>wp-content/plugins/</code>
</li>
<li>Activate the plugin through the ‘Plugins’ menu in WordPress</li>
<li>“Dashboard”->”Easy WP Cleaner”</li>
</ol>

Easy WP Cleaner

Easy WP Cleaner is user friendly plugin to clean unnecessary data from WordPress database and also allows you to optimize your WordPress database.

Upload Directory Cleaner vs Easy WP Cleaner