Query Monitor

Query Monitor is the developer tools panel for WordPress.


John Blackbourn 100,000+ active installations Tested with 5.4.1 Updated 2 weeks ago

WP PHP Console

An implementation of PHP Console as a WordPress plugin. Use Chrome Dev Tools to debug…


Fulvio Notarstefano 2,000+ active installations Tested with 5.2.6 Updated 12 months ago

Fatal Error Notify

Receive email notifications whenever a fatal error occurs on your site.


Very Good Plugins 1,000+ active installations Tested with 5.4.1 Updated 2 months ago

Phpinfo

Prints out your webservers php settings as well as other information about your WordPress installation.


Roland Rust 500+ active installations Tested with 2.2.2 Updated 13 years ago

WP Safe Mode

Disable plugins or switch themes for just you or the whole site for debugging, troubleshooting…


Marcus Sykes 300+ active installations Tested with 5.3.3 Updated 2 months ago

Premmerce Dev Tools

This plugin is created to facilitate the development, testing and debugging of the code on…


premmerce 200+ active installations Tested with 5.2.6 Updated 12 months ago

Black Bar

Black Bar is a Debug Bar for WordPress developers. It collects and displays errors, executed…


Paul Ryley 100+ active installations Tested with 5.4.1 Updated 3 weeks ago

WP Output Log File

License: GPLv2 or later License URI: http://www.gnu.org/licenses/gpl-2.0.html This plugin can manage the output log file,…


Reiji sato 100+ active installations Tested with 4.8.13 Updated 3 years ago

Dev Info Bar

A simple WordPress extension which adds itself to the admin bar, providing system information such…


Istvan Krucsanyica 100+ active installations Tested with 5.0.9 Updated 1 year ago

BlackBox Debug Bar

BlackBox is a plugin for plugin and theme developers. It collects and displays useful debug…


Grzegorz Winiarski 100+ active installations Tested with 3.5.2 Updated 7 years ago

WP Email Debug

Never accidentally send users emails from your testing sites again!


Grant Derepas 100+ active installations Tested with 4.3.23 Updated 5 years ago

CC-Sentry

This plugin integrates your WordPress site with Sentry error logging system.


Clearcode 100+ active installations Tested with 4.8.13 Updated 3 years ago

Debug Media

Adds media debugging information to the Debug Bar.


Joe McGill 80+ active installations Tested with 4.7.0 Updated 3 years ago

Freesoul Switch Theme

Freesoul Switch Themes allows you to load multiple themes on the same WordPress website.


Jose Mortellaro 70+ active installations Tested with 5.4.1 Updated 2 months ago

Simple WP FirePHP

Extremely simple mechanism for embedding FirePHP into WordPress to use FirePHP during WP Development.


Cori Schlegel 60+ active installations Tested with 2.9.2 Updated 10 years ago

Admin Bar Queries

MySQL queries and load details added to your admin bar.


Carmelo Santana 60+ active installations Tested with 4.7.17 Updated 3 years ago

System information

Adds a system information page that include all the details on your WordPress configuration.


Joe's Web Tools 50+ active installations Tested with 3.7.33 Updated 6 years ago

Error Tracker

Error Tracker is a super lightweight plugin that allows you to easily integrate LogRocket and/or…


Trevor Thompson 20+ active installations Tested with 5.2.6 Updated 1 year ago