TIEro

This plugin is now available as part of <a href="https://wordpress.org/plugins/tietools-automatic-maintenance-kit/" title="TIEtools" rel="ugc">TIEtools</a>, which also includes post expiry and server log file removal.
A simple duplicate post deletion plugin. Spots posts with the same title and removes all but one of each.
<ul>
<li>Checks in published, draft, pending and private posts on demand</li>
<li>Includes or excludes user-defined list of categories</li>
<li>Moves all duplicate posts to the Trash (leaving the oldest or newest original copy)</li>
<li>Permanent post deletion is handled by WP’s built-in Trash removal</li>
<li>Power button to switch everything on and off without messing with the plugins page</li>
</ul>

TIEdupedeleter Simple Duplicate Post Deleter

Simple duplicate post deleter. Trashes duplicate posts based on status and category. Keeps newest or oldest original copy.

Provides automated post maintenance. TIEtools is ideal for sites with a news feed or other automated posting setup that requires regular hands-off trimming (including autoblogging).
Post Expiry
<ul>
<li>Expires published, draft, pending and private posts on demand, based on age, maximum post retention, post views and post likes.</li>
<li>Integrates with BAW Post Views Count and WTI Like Post.</li>
<li>Sends notification emails for expired posts, if required.</li>
<li>Includes or excludes user-defined list of categories.</li>
<li>Leaves unwanted posts in the Trash.</li>
</ul>
Image Expiry
<ul>
<li>Can expire images based on post age, without removing the parent posts.</li>
<li>Expires images from published, draft, pending and private posts on demand.</li>
<li>Includes or excludes user-defined list of categories.</li>
<li>Deletes old images or leaves them “unattached” in the Media Library for later handling.</li>
</ul>
Duplicate Post Deletion
<ul>
<li>Finds and removes duplicate posts by title.</li>
<li>Keeps the oldest or newest original copy, removing all others.</li>
<li>Checks in published, draft, pending and private posts on demand. </li>
<li>Includes or excludes user-defined list of categories. </li>
<li>Sends notification emails for duplicate posts, if required.</li>
<li>Leaves unwanted posts in the Trash.</li>
</ul>
Server Log Deletion
<ul>
<li>Cleans up server error logs.</li>
<li>Checks for user-defined log filename.</li>
</ul>
All processes run automatically using wp-cron.

TIEtools Automatic Maintenance Kit

Automatic post and image expiry, duplicate post detection and server log deletion to keep your site clean and efficient.

TIEdupedeleter Simple Duplicate Post Deleter vs TIEtools Automatic Maintenance Kit