Display prettified page source on the frontend.
**NOTICE: This plugin is no longer maintained.** Quick Cache has been renamed to ZenCache.
ZenCache is an advanced WordPress caching plugin inspired by simplicity. Speed up your site (BIG time!) with a reliable and fast WordPress cache.
View debugging and performance information on database queries, hooks, conditionals, HTTP requests, redirects and more.
See which plugins are slowing down your site. This plugin creates a performance report for your site.
View Information about your WordPress Configuration (Defaults, Themes, Plugins) and Server Information that is useful for debugging and support.
An implementation of PHP Console as a WordPress plugin. Use Chrome Dev Tools to debug your WordPress installation!
It's important for a non technical administrator to be able to diagnose server related problems in WordPress.
Modify WordPress wp-config.php file values using a Simple User Interface Form.
A tool for experienced frontend performance engineers to take control over the scripts and styles enqueued on their site.
A tool for logging and monitoring custom errors, making debugging complex PHP a breeze.
Install and manage development plugins
RHJ4 Diagnostics supports program debugging by making it simple to write tracing information into several log files.
Making collecting extensive and extendable debug info finally easy.
Admin page debugger tool
Debug your plugin with the help of Debug Bar. Puts debugging messages in the drop down Debug Bar interface.
Lists WordPress require() calls mainly for plugin code refactoring
Extreme Advanced debugging plugin for seeing the verbose of the verbose debug info. Tech Support, Server Admins, WordPress Developers, Plugin Develop
MySQL queries and load details added to your admin bar.
Speed up your blog with Easy Cache, bullet-proof and easy-to-use website caching mechanism for WordPress that just works.
Inpect hidden information of your WordPress websites for debugging
An unobtrusive debugging tool for WordPress
Adds a system information page that include all the details on your WordPress configuration.
A simple plugin that reports the call stack trace when PHP errors occur.
A WordPress plugin that makes var_dump and print_r pretty!
BlackBox is a plugin for plugin and theme developers. It collects and displays useful debug information (errors, executed queries, globals, profiler).
Plugin for debugging. Showing the value of all PHP constants. Useful for instance for solving problems when upgrading or when changing webhoster.
Displays a list of each page's SQL queries and the functions calling them that can be searched and sorted by time, type, etc.
Adds PHP profiling support to your WordPress using Facebook's XHProf Profiler.
Log variables and view the results in your admin interface