This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

User ID Changer


User ID Changer is a simple plugin which allows administrators to change User ID’s of users on their WordPress sites.

It also changes the associated posts & comments for that new User ID.

It is always recommended to change the default admin user ID from 1 to something else.

User ID Changer is used at your own risk & carries not warranties.
If somethng untoward should happend, just re-run the User ID Changer and reassign the Old ID back again.



  1. Unzip the downloaded ‘’ file
  2. Upload the ‘userid-changer’ folder to ‘/wp-content/plugins’ directory of your WordPress installation
  3. Activate the plugin via the WordPress Plugins page


Does it support WordPress Multi-site

No, not yet.

Does the posts associated to a user also get changed

Yes, the posts table post_author gets change to match the new User ID

I have a plugin that uses / duplicates the User ID’s, and it’s not working on my plugin

Email use the name of the plugin and we can investigate it.

Something untoward happened and some of the data is missing

Re-run the User ID Changer on that User and reassign the Old ID back to it

Jetpack User

If you are using Jetpack and changing the User ID linked to Jetpack, please DEACTIVATE the Jetpack plugin, then changed the User ID, once changed. ACTIVATE the Jetpack plugin and press Connect to, then press Approve. This will then assign the new User ID to Jetpack.


February 15, 2017
Can't say enough good things about this plugin, and the people behind it. There's no fluff, the plugin does exactly what it's supposed to in a straightforward way. The really amazing part is I had another plugin on my site that was also using the User IDs, and it was clashing with the User ID changer, but the author immediately found a fix for the issue!
January 6, 2017
Excellent plugin - simple and straightforward and the only one I could find that allowed me complete a mass User id update for an urgent project. Support is outstanding! I asked for two minor changes to assist with my particular project. Code changes were supplied within hours. Highly recommended.
September 21, 2016
WordPress is not safe, and it will NEVER be 100% safe, unless the site admins take some steps, this plugin takes care of one of those important steps. - We all know that hackers try to attack the useername "admin". But they can also attack the user ID, which the admin account in most cases would be 1, and in some cases 2, 3, etc... (lower numbers). This plugin takes care of that, and it works perfectly. - The second thing that WordPress fails is the fact that it allows the actual usernames to be displayed in public. Thus, if an admin. writes a post, and does not change how his public username will be displayed on the front by his profile page, then everybody will know the admins usernames, thus making this plugin useless, mainly because if the admins pure stupidity. WordPress has to fix this, where the actual usernames are not shown on the front, as many admins are lazy, uninformed, stupid, or all 3!!! GREAT PLUGIN !!! I will be using this with every site that I have.
September 18, 2016
This plugin save so much time, also if your not familiar with mySQL, it's saves you so much time. Works very well with standalone WordPress.
Read all 5 reviews

Contributors & Developers

“User ID Changer” is open source software. The following people have contributed to this plugin.

Translate “User ID Changer” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.


Version 1.1.7

  • ADDED Wordfence support to stop errors
  • ADDED New WordPress information on Roles / Posts / Pages / Comment
  • ADDED Support for popluar plugins
  • ADDED Website Details / Logged in Admin Details / DNS Information
  • ADDED 10 Digit length to User Id
  • CLEANED Removed old code and cleaned up structure

Version 1.1.6

  • ADDED Display for Jetpack linked User
  • ADDED Jetpack instructions

Version 1.1.5

  • FIXED Minor div bug
  • ADDED Colour to administrator role
  • CLEANED New Alert Notices

Version 1.1.0

  • ADDED Display of Avatar
  • ADDED New table entry – Comments (T=Total / A=Approved / U=Unapproved)
  • ADDED New table to display total Posts & Pages count
  • ADDED Buttons to refresh page & display changed user

Version 1.0.0

  • Initial Release