BuddyDev Username Availability Checker for WordPress & BuddyPress

BuddyDev Username Availability Checker Plugin allows to check for the availability of a username on WordPress, BuddyPress Registration pages and Add new user screen. BuddyDev Username availability checker plugin is veryhelpful for BuddyPress based sites, It allows users to see if a username is available without any page refresh.. Also, if you are running larger WordPress Multisite install, It is useful for admin to see the availability of username without reloading the add new user page.


  • Checks for username availability in WordPress Admin New User screen
  • Checks for username availability on WordPress standard registration page
  • Checks for availability on BuddyPress registration page.
  • Compatible with BuddyPress Ajax registration plugin.
  • 100% BuddyPress compatible

If you are building a social site, use this plugin to look more professional.



This plugin is efficient and only loads the required javascript/css on specific pages.

It is flexible and can work with any 3rd party plugin with small snippet of code. Use our forums to ask us how to get it work with any other registration related plugin.

Release History

  • Version: 1.1.1

    Friday, 11 August, 2017
    • Tested With: WordPress 4.8.1
    • Compatible With: WordPress 4.3

    Updated to add filter for allowing restrictions.

  • Version: 1.1.0

    Thursday, 22 October, 2015
    • Tested With: WordPress 4.3.1
    • Compatible With: WordPress 3.6+

    Completely refactored. Works with /without BuddyPress.
    Added support for Standard WordPress Registration page/Add New user screen

  • Version: 1.0.4

    Sunday, 10 March, 2013
    • Tested With: BuddyPress 1.7+/BuddyPress1.8
    • Compatible With: BuddyPress 1.7+/BuddyPress1.8

    Fix for deprecated functions in Bp 1.7

  • Version: 1.0.3

    Tuesday, 17 July, 2012
    • Tested With: BuddyPress 1.6.1
    • Compatible With: BuddyPress 1.6+

    Fixes for BuddyPress 1.6+

  • Version: 1.0.1

    Tuesday, 21 September, 2010
    • Tested With: WordPress 3.0.1+BuddyPress 1.2.6
    • Compatible With: wpmu 2.9.2+BuddyPress 1.2

    Fixed the json error with IE browsers.