gerrygooner

This WordPress plugin will cleanup your WordPress database, performing the following actions:
<ul>
<li>Remove all post revisions.</li>
<li>Remove all spam comments.</li>
<li>Remove all unapproved comments.</li>
<li>Remove all unused tags.</li>
<li>Remove all unused post meta.</li>
<li>Optimize MySQL tables by removing all unused table space.</li>
</ul>
Based on WP-Cleanup by JortK, this plugin replaces usage of mysql_query() that was deprecated in PHP 5.5 with WP_Query functions .

WP-CleanDB

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.

WP-CleanDB vs Easy WP Cleaner