Jordi Cabot

seriouswp

Once a site starts growing, it always ends up with repeated tags and categories. Sometimes, you create a new category when you were before using a tag. Or you just forget about old tags and en up writing new ones with a very similar name.
This damages the organization your content and the quality of the user navigation on your site.
This plugin helps you to quickly identify (too) similar tags and categories and gives you the option to merge them to simplify your site taxonomies.
In the Configuration page you can define how close term names should be to be considered duplicates.
In the Analysis page you can review the duplications and decide which ones to merge.

Serious Duplicated Terms

Ideal to remove some (quasi)duplicated terms and clean and sort out better your tags and categories

You'll be surprised to see how many duplicated terms you have!

Merge duplicated tags and categories to simplify and better organize the content and navigation of your site

Freemius

Luis Peel

Melopo Duplicate Cleaner helps you find and remove duplicate content across posts, pages and any Custom Post Type — quickly, safely and without touching your live content until you say so.
Free features:
<ul>
<li>Detect duplicates in Posts and Pages by exact title or slug</li>
<li>Grouped results view — see all duplicates at a glance</li>
<li>Preview modal before deleting — see content, image, and metadata first</li>
<li>Bulk actions: Move to Trash or Change to Draft</li>
<li>Whitelist posts you want to keep (excluded from future scans)</li>
<li>Action log — track every change with date, user, and post info</li>
<li>Filters by post type and status</li>
</ul>
Pro features:
<ul>
<li>Scan any Custom Post Type</li>
<li>Title similarity detection with configurable threshold (70 % – 95 %)</li>
<li>Permanent deletion with automatic 301 redirects</li>
<li>Scheduled automatic scans (daily / weekly / monthly) via WP-Cron</li>
<li>Email notifications when new duplicates are found</li>
<li>Export logs to CSV</li>
<li>Unlimited log retention</li>
</ul>

Melopo Duplicate Cleaner

Find and delete duplicate posts, pages and custom post types. Includes full CPT support, 301 redirects and scheduled scans.

Serious Duplicated Terms vs Melopo Duplicate Cleaner