This plugin hasn’t been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Clean Up Zombie Users (spammers)


Anyone who has run a WordPress site for more than a few weeks knows that 95% of all site registrations typically come from spammers. When they can’t get a comment approved, they just sit in the database, clogging up the works.

We call these folks zombie users, and they’re coming for your brains.

This is a plugin designed to do one thing: clean up zombie users.

If you have a WordPress site with lots spammer registrations, this plugin will delete any user who has never had a post or comment approved. Zombie Users… BRAAAAINS.

Included Features:

  • Target specific user roles for deletion based on whether they have ever posted or commented
  • Includes a test mode to see what the results will be
  • Includes the ability to delete users in chunks, for large sites.

To Do:

An [x] indicates this is done in the development version

  • [ ] Allow newer users to be excluded
  • [ ] Build in logic for all major e-commerce plugins so that paying customers can’t be pruned
  • [ ] Boolean values don’t really need to be sanitized, but we’re going to do it anyway
  • [ ] Save selections as session data between submit & results
  • [x] Trim ” | User Role” from the end of role listings on older WP sites.
  • [ ] Need to make the entire introductory message change after a post
  • [ ] Need to put the deleted users list into a scrolling DIV
  • [ ] Investigate AJAX updates as the plugin works
  • [ ] Investigate the ability to protect users without changing their roles
  • [ ] Investigate the ability to line-item delete users, or remove them from the operation

Ongoing Development

If you would like to contribute something, find the plugin at:


  • The plugin options screen
  • Successful Operation Screen


  1. Upload plugin to the “/wp-content/plugins/” directory.
  2. Activate the plugin through the “Plugins” menu in WordPress.
  3. Visit the options page in your administrative settings and get cleaning


Braaaaaaains! Does the job.

Cleaned up a mass of “zombie users” quickly and easily. It’s a powerful tool but provides the right warnings and allows a test mode, so if you’re smart enough to have a backup, there should be no concerns.

Thanks for cleaning up that mess for me!

Read all 8 reviews

Contributors & Developers

“Clean Up Zombie Users (spammers)” is open source software. The following people have contributed to this plugin.




  • Accidentally reverted a few lines in the limiter check to 4.0b, causing a bug in that feature. Resolved
  • Updated the never-comment/never-post logic to avoid undefined variables in certain situations
  • Questioned whether I’m even going to leave the office in time for New Years Eve


  • Fixed an issue with key => value pairs when determining roles for auto-inclusion. Primarily affected older installations


  • Properly sanitized the text field for limiting results


  • Broke up the plugin into smaller files for greater readability
  • Properly enqueued styles & scripts


  • Fixed the undefined index in dynamic variables on lines 71 and 72.
  • Fixed a jQuery mistake in the confirmation conditional
  • Plugin now 100% error free in testing.


  • Fixed the has_cap warning by changing “8” to “manage_options” in option page permissions