mustansir

This plugin allows you to add a dashboard widget that manages specific taxonomies (Such as tags and categories or any custom taxonomy). Specifically the dashboard widget makes it easy to remove a post from a taxonomy of any kind.
Those who have themes, plugins, widgets that use the wordpress taxonomy system to place posts in various lists will find this plugin especially useful.
This plugin allows you to add a dashboard widget that manages taxonomies. It easy to remove a taxonomy term applied to a post.

Category Manager

The WP Category Manager plugin makes it easier to manage any taxonomy that is used to control the posts within widgets in the presentation layer

sungraizfaryad

Permalinks, as the name suggests, are permanent links to pages or posts, categories or tags on your website, which makes it easier for your visitors and search engines to navigate around your website.
How many times have you closed a website or not bookmarked it because the URL looked fishy? Plenty of times, isn’t it? There is something about long URLs with weird numbers and characters that make you not want to look at them. Custom Permalinks can change that notion. WordPress can create short, clear, simple, and to-the-point permalinks so that your URLs look professional along with your website.
But there is also a limit in WordPress, and that’s when this plugin comes into play. By using this plugin, you can simplify the permalinks further by removing the base slugs.

Remove Taxonomy Url

This is a purpose-oriented plugin that simply removes the taxonomy slugs from URL.

Category Manager vs Remove Taxonomy Url