Igor Golovanov

WP Term Metadata Plugin for retrieving and manipulating metadata of term objects. Metadata for 
an object is a represented by a simple key-value pair. Objects may contain multiple metadata 
entries that share the same key and differ only in their value.
= Plugin provides new API functions:
<ul>
<li>add_term_meta() – Add meta data field to a term.</li>
<li>delete_term_meta() – Remove meta data matching criteria from a term.</li>
<li>get_term_meta() – Retrieve term meta field for a term.</li>
<li>
update_term_meta() – Update term meta field based on term ID.
</li>
<li>
add_term_taxonomy_meta() – Add meta data field to a term based on taxonomy name.
</li>
<li>delete_term_taxonomy_meta() – Remove meta data matching criteria from a term based on taxonomy name.</li>
<li>get_term_taxonomy_meta() – Retrieve term meta field for a term based on taxonomy name.</li>
<li>update_term_taxonomy_meta() – Update term meta field based on term ID and taxonomy name.</li>
</ul>

WP Term Metadata

WP Term Metadata Plugin for retrieving and manipulating metadata of term objects.

darrinb

With the launch of version 4.4, WordPress added metadata capabilities for taxonomy terms. Advanced Term Fields leverages this new capability by providing developers an easy-to-use, yet powerful framework for adding custom meta fields to taxonomy terms.
Through the use of hooks and filters, it’s completely customizable for your project requirements, while also providing a standardized way of building a UI for managing term metadata.
Use it for tags, categories, even custom taxonomies. Advanced term meta, your way!
<h4>Usage</h4>
This is a parent framework, meant to be extended by child classes. See any one of the following extensions for examples:
<ul>
<li><a href="https://wordpress.org/plugins/advanced-term-fields-colors/" rel="ugc">Advanced Term Fields: Colors</a> Color-code your terms!</li>
<li><a href="https://wordpress.org/plugins/advanced-term-fields-icons/" rel="ugc">Advanced Term Fields: Icons</a> Icons for categories, tags, and custom taxonomy terms.</li>
<li><a href="https://wordpress.org/plugins/advanced-term-fields-featured-images/" rel="ugc">Advanced Term Fields: Featured Images</a> Featured images for terms!</li>
</ul>

Advanced Term Fields

A framework for managing custom term meta for categories, tags, and custom taxonomies.

WP Term Metadata vs Advanced Term Fields