Term Taxonomy Converter
Copy or convert terms from one taxonomy to another while keeping their post associations.
The facts
- Rating
- 5★ from 6
- Active installs
- 500+
- Price
- Free
- Last updated
- 17 Jun 2026
- Added
- Jul 2019
- Requires WP
- 5.0
- Tested up to
- WP 7.0.4
- Requires PHP
- 7.4
- Downloads
- 9,884
Our analysis
AI-assistedTerm Taxonomy Converter is a WordPress plugin that enables you to copy or convert terms between taxonomies, such as categories and tags, as well as any custom taxonomies in use. It allows for the duplication or movement of terms while keeping associated posts intact. The plugin is particularly useful for managing large sets of terms, as it runs conversions in batches via AJAX and includes a progress bar to prevent timeouts.
The plugin also features a Preview button that provides a detailed report of the conversion process, including the number of terms that will be created, how many posts will be re-tagged, and how many source terms will be deleted. For advanced users, it supports WP-CLI commands for scripted or extensive migrations.
Best for: This plugin is suitable for users managing large WordPress sites with complex taxonomy needs.
What it does well
- ✓Free to use from the WordPress.org directory
- ✓Supports copying and converting terms between various taxonomies
- ✓Maintains associated posts during conversions
- ✓Handles large term sets with AJAX processing
- ✓Includes a Preview feature for safe conversions
Where it falls short
- •Limited information on specific use cases or user experiences
Verdict
Term Taxonomy Converter is a practical tool for users needing to manage and migrate terms between taxonomies efficiently, especially on larger sites.
From the developer
Dhanendran Rajagopal's own description of Term Taxonomy Converter, lightly tidied.
Initial version of this plugin is a fork of https://wordpress.org/plugins/taxonomy-converter/.
Copy or convert terms between taxonomies.
Taxonomies include categories, tags and any other custom taxonomies that may be present with your active theme and plugins.
This plugin, allows you to copy (duplicate) or convert (move) terms from one taxonomy to another or to multiple taxonomies, while maintaining associated posts.
Large sites
Conversions run in batches over AJAX with a progress bar, so large term sets no longer time out. A Preview (dry run) button reports exactly what will happen — how many terms would be created, how many posts re-tagged, and how many source terms deleted — before you commit.
Wp-cli
For scripted or very large migrations, use the command line:
# Preview copying two categories into post_tag
wp term-tax-converter convert 12 15 --from=category --to=post_tag --dry-run
# Convert (move) all categories into a custom taxonomy
wp term-tax-converter convert --all --from=category --to=topic --mode=convert
Run wp help term-tax-converter convert for all options.