datafeedr

This plugin adds 2 drop down menus to your Media Library (WordPress Admin Area > Media) which enable you to filter the media in your library by the taxonomies and terms (ie. categories) your media is associated with.
Media is generally “attached” to Posts, Pages, Custom Post Types, etc. All these types of posts can be associated with taxonomies and terms. This plugin allows you to filter media which is attached to any type of post by the taxonomies and terms related to those posts.
Plugin inspired by <a href="http://wordpress.stackexchange.com/a/126873" rel="nofollow ugc">answer on StackExchange</a>.
Limitation
The filters are only available when viewing your Media Library in <a href="https://res.cloudinary.com/dpq5gf23t/image/upload/v1699630258/Plugins/list-mode_mobdn5.png" rel="nofollow ugc">“list” mode, not “grid” mode</a>.
<a href="https://res.cloudinary.com/dpq5gf23t/image/upload/v1699630258/Plugins/list-mode_mobdn5.png" rel="nofollow ugc">View screenshot for more explanation</a>.

Media Library Filter

Filter the media in your library by the taxonomies and terms with which they are associated.

Dhanendran Rajagopal

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.
<h4>Large sites</h4>
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.
<h4>WP-CLI</h4>
For scripted or very large migrations, use the command line:
<pre><code># 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
</code></pre>
Run <code>wp help term-tax-converter convert</code> for all options.

Term Taxonomy Converter

Copy or convert terms from one taxonomy to another while keeping their post associations.

Media Library Filter vs Term Taxonomy Converter