Assigns the default category to all posts that have no category after you've converted your categories to tags.
As of April 2026, Assign Missing Categories is a WordPress categories plugin with 20 active installations and a 5/5 rating from 8 reviews. It has been downloaded 5.4K+ times in total. Requires WordPress 2.3+ and PHP false+. Available on WordPress.org since 2008. Last updated 11 years ago — may have compatibility concerns. Top alternative: List category posts.
If you have converted categories to tags and are now left with a lot of posts that have no category assigned (that show up with ‘Uncategorized,’ unlinked, as the category under Posts), you can use this plugin to assign the default category to all those posts at once.
| WordPress | 2.3+ requiredTested up to 4.1.42 |
| PHP | false+ required |
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