P3 (Plugin Performance Profiler)

See which plugins are slowing down your site. This plugin creates a performance report for…


GoDaddy.com 100,000+ active installs Tested with 4.1.18 Updated 2 years ago

Query Monitor

View debugging and performance information on database queries, hooks, conditionals, HTTP requests, redirects and more.


John Blackbourn 30,000+ active installs Tested with 4.7.5 Updated 5 months ago

WP PHP Console

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


Fulvio Notarstefano 1,000+ active installs Tested with 4.5.9 Updated 1 year ago

Phpinfo

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


Roland Rust 1,000+ active installs Tested with 2.2.2 Updated 10 years ago

RS System Diagnostic

Easily gather all the your WordPress and site configuration data in seconds, and send it…


Scott Allen 600+ active installs Tested with 4.8.1 Updated 5 months ago

AskApache Debug Viewer

Extreme Advanced debugging plugin for seeing the verbose of the verbose debug info. Tech Support,…


askapache 300+ active installs Tested with 4.0.18 Updated 3 years ago

WordPress Sentry Client

A plugin that sends error messages to the Sentry error logging system.


Ryan Bagwell 200+ active installs Tested with 3.4.2 Updated 1 year ago

Debug My Plugin with Debug Bar

Debug your plugin with the help of Debug Bar. Puts debugging messages in the drop…


Charleston Software Associates 200+ active installs Tested with 4.0.18 Updated 3 years ago

BlackBox Debug Bar

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


Grzegorz Winiarski 200+ active installs Tested with 3.5.2 Updated 4 years ago

Simple WP FirePHP

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


Cori Schlegel 100+ active installs Tested with 2.9.2 Updated 7 years ago

WP Email Debug

Never accidentally send users emails from your testing sites again!


Grant Derepas 100+ active installs Tested with 4.3.11 Updated 2 years ago

System information

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


Joe's Web Tools 100+ active installs Tested with 3.8.21 Updated 4 years ago

Admin Bar Queries

MySQL queries and load details added to your admin bar.


Carmelo Santana 100+ active installs Tested with 4.7.5 Updated 9 months ago