dmikam

This simple plugin permits you to upload images to categories, tags and custom taxonomies just like to posts. 
This feature is very useful when you want to show unique image in header tor every category or even some slideshow of images. 
Also you can show a list of categories/subcategories with a little thumbnail am much more.
By the way, this plugin just uses wordpress native functionality – no aditional tables and nothing like that. 
Also it uses wordpress images so all sizes are generated automatically (custom sizes included).

WP Category Images

Simple plugin that permits to images to Categories, Tags and Custom Taxonomies.

webdevstudios

Justin Sternberg

Scott Kingsley Clark

pluginize

This plugin allows you to select your “From”, and “To” Taxonomies, to convert all terms. Optionally select a parent term to limit terms to switch. Typing term names will do a live search of terms with the name you are typing AND possess child terms.
Plugin also has built-in support for <a href="http://wp-cli.org/" rel="nofollow ugc">WP-CLI</a>. In the command line, type in <code>wp taxonomy-switcher</code> for instructions.
<a href="https://github.com/WebDevStudios/taxonomy-switcher" rel="nofollow ugc">Plugin is on GitHub</a>. Pull Requests and Forks welcome.
<h3>Notes</h3>
Please keep in mind, if parent isn’t set, or you don’t specify a comma-separated list of term ids to migrate, it will migrate all terms for that taxonomy to the new taxonomy.
<a href="https://pluginize.com/?utm_source=taxonomy-switcher&utm_medium=text&utm_campaign=wporg" rel="nofollow ugc">Pluginize</a> was launched in 2016 by <a href="https://webdevstudios.com/" rel="nofollow ugc">WebDevStudios</a> to promote, support, and house all of their <a href="https://pluginize.com/shop/?utm_source=taxonomy-switcher&utm_medium=text&utm_campaign=wporg" rel="nofollow ugc">WordPress products</a>. Pluginize is not only creating new products for WordPress all the time, but also provides <a href="https://wordpress.org/plugins/custom-post-type-ui/" rel="ugc">ongoing support and development for WordPress community favorites like CPTUI</a>, <a href="https://wordpress.org/plugins/cmb2/" rel="ugc">CMB2</a>, and more.

Taxonomy Switcher

Not sure the forum policy on swearing on here, but this plugin is chuffing amazing, saved my bottom recently as I imported ~7000 term into the wrong taxonomy, and it transferred it over no fuss.

This saved my bottom!

Don't let the small number of active installs fool you: This tool does what it says and does it well. Once the data is modified, most people (like myself) probably uninstall it.

Kudos to the Authors!

Awesome Tool!

Does exactly what it claims to do and works flawlessly. Thanks!!

Awesome!


I started using this plugin recentlyThanks for the CLI support



Works as expected


Kudos to CLI support

Switch the taxonomy for all terms or only child terms of a specified parent term.

WP Category Images vs Taxonomy Switcher