Delete Tags with no posts Plugin on WordPress

This is a plugin that will help you mange tags better on wordpress. You might have problems that when you delete tags from your edit post settings that it doesn't really delete the tag, it just really removes the relation of the tag and the post. This plugin will help you delete tags that don't have any related post (0 posts).

You can do this by installing this plugin through add new plugins and searching "Tag Managing Thing".

Then go "Tools" and "Tags" you'll get option to delete tags without any related posts with them.

The site of the Plugins developer is :
http://www.neato.co.nz/wordpress-things/tag-managing-thing/