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Custom fields are great for storing various meta data about a post. However, if you routinely need to display posts that have a certain custom field value, you should consider switching to a <a href="https://codex.wordpress.org/Custom_Taxonomies" rel="nofollow ugc">custom taxonomy</a>, which is better suited for grouping posts.
With this simple plugin, you can convert all custom fields with a certain key to terms in a certain taxonomy, while maintaining the post association.
Note: If you’re looking for the old version, see <a href="https://wordpress.org/extend/plugins/custom-query-fields/" rel="ugc">Custom Query Fields</a>
Links: <a href="http://scribu.net/wordpress/custom-field-taxonomies" rel="nofollow ugc">Plugin News</a> | <a href="http://scribu.net" rel="nofollow ugc">Author’s Site</a>

Custom Field Taxonomies

Convert custom fields to tags, categories or taxonomy terms

Pratik Shrestha

Catch Plugins

Sakin Shrestha

dreamsapana

Mahesh Maharjan

Catch Themes

Hide/Remove Metadata is a free, simple yet extremely handy WordPress plugin that helps you hide or remove author and published date from your website effortlessly. The plugin is super easy to use and comes with only the essential features to hide or remove author and date. Simple and straight. There are times when you might not want to publicize the author’s name or the date when the article was published; Hide/Remove Metadata is perfect for situations like these. You can also choose to hide only one of them, either author or date. And if you want both of them to stay hidden, you can turn on the Hide option for both. Hide/Remove Metadata is extremely useful and takes less than a minute to set up. You can either completely or partially hide the author’s information and published date. Select CSS to partially hide them or select PHP to completely remove the information. The hide author and date plugin comes with a responsive design, which means your website will not be affected in any way; it will look as beautiful as it was. Download Hide/Remove Metadata today!

Hide/Remove Metadata

Hide/Remove Metadata is a free WordPress plugin that helps you hide author and published date either by CSS or PHP from your website effortlessly.

Custom Field Taxonomies vs Hide/Remove Metadata