P3 (Plugin Performance Profiler)

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


GoDaddy.com 100,000+ active installations Tested with 4.1.19 Updated 3 years ago

Query Monitor

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


John Blackbourn 30,000+ active installations Tested with 4.8.2 Updated 3 weeks ago

Debug Bar

Adds a debug menu to the admin bar that shows query, cache, and other helpful…


wordpressdotorg 30,000+ active installations Tested with 4.8.2 Updated 5 months ago

WP Mail Logging

Logs each email sent by WordPress.


Christian Zöller 20,000+ active installations Tested with 4.8.0 Updated 4 months ago

Core Control

Core Control is a set of plugin modules which can be used to control certain…


Dion Hulse 7,000+ active installations Tested with 4.5.10 Updated 2 years ago

Debug This

Peek under the hood with sixty debugging reports just one click away.


Brian Fegter, Chris Dillon 5,000+ active installations Tested with 4.8.2 Updated 10 months ago

Debug Bar Console

Adds a PHP/MySQL console to the debug bar. Requires the debug bar plugin.


koopersmith 5,000+ active installations Tested with 3.4.2 Updated 6 years ago

Busted!

Force browsers to load the most recent file if modified.


Paul Clark 5,000+ active installations Tested with 4.2.16 Updated 2 years ago

Monster Widget

Provides a quick and easy method of adding all core widgets to a sidebar for…


Automattic 5,000+ active installations Tested with 4.8.2 Updated 11 months ago

Debug-Bar-Extender

Extends the debug-bar plugin with additional tabs to measure runtimes between checkpoints and lookup variable…


Thorsten Ott, Automattic 4,000+ active installations Tested with 3.2.1 Updated 6 years ago

Background Update Tester

Most sites are able to apply updates in the background. Background Update Tester checks your…


the WordPress team 4,000+ active installations Tested with 4.1.19 Updated 3 years ago

Monkeyman Rewrite Analyzer

Making sense of the rewrite mess. Display and play with your rewrite rules.


Jan Fabry 4,000+ active installations Tested with 3.2-beta1 Updated 6 years ago

Log Viewer

This plugin provides an easy way to view *.log files directly in the admin panel.


Markus Fischbacher 3,000+ active installations Tested with 3.9.20 Updated 3 years ago