This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Debug Bar

Description

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

A must for developers!

When WP_DEBUG is enabled it also tracks PHP Warnings and Notices to make them easier to find.

When SAVEQUERIES is enabled the mysql queries are tracked and displayed.

To enable these options, add the following code to your wp-config.php file:

define( 'WP_DEBUG', true );
define( 'SAVEQUERIES', true );

Add a PHP/MySQL console with the Debug Bar Console plugin.

There are numerous other add-ons available to get more insight into, for instance, the registered Post Types, Shortcodes, WP Cron, Language file loading, Actions and Filters and so on. Just search the plugin directory for ‘Debug Bar’.

Installation

Use automatic installer.

Reviews

March 10, 2021
This is on my top list of tools when creating custom themes / plugins. Thank you for this great plugin!
Read all 60 reviews

Contributors & Developers

“Debug Bar” has been translated into 15 locales. Thank you to the translators for their contributions.

Translate “Debug Bar” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

1.1.2

Fix error checking in HTTP Requests panel.

1.1.1

Refactor the HTTP Requests panel:
– Remove jQuery usage
– Properly display response codes
– Better CSS to emphasize errors and long requests ( > 250ms )

1.1

Add a new panel for HTTP requests using the native WP methods.
AMP dev mode compatibility.
Change cache busters to use filemtime instead of hardcoded values.
Minor CSS updates, so themes don’t override the pre styles.

1.0.1

Update object cache panel CSS to be ready for new object-cache.php release with better stats()

1.0

Improved compatibility with the WordPress.com toolbar in Jetpack

0.9

Added panel navigation to toolbar.
Improved localization support.
Security fixes.

0.8.4

Updated to avoid incompatibilities with some extensions.

0.8.3

Updated to avoid PHP7 Deprecated notices.

0.8.2

Updated to handle a new deprecated message in WordPress 4.0.

0.8.1

Minor security fix.

0.8

WordPress 3.3 compatibility
UI refresh
Removed jQuery UI requirement
Full screen by default
New debug-bar query parameter to show on page load
Removed display cookies
JavaScript error tracking (disabled by default)

0.7

Made compatible with PHP < 5.2.0
CSS Tweaks
Load JavaScript in Footer
Fixed display issues for WP_Query debug on CPT archives pages
SQL/DB error tracking

0.6

Added maximize/restore button
Added cookie to keep track of debug bar state
Added post type information to WP_Query tab
Bug fix where bottom of page was obscured in the admin

0.5

New UI
Backend rewritten with a class for each panel
Many miscellaneous improvements

0.4.1

Compatibility updates for trunk

0.4

Added DB Version information
Updated PHP Warning and Notice tracking so that multiple different errors on the same line are tracked
Compatibility updates for trunk

0.3

Added WordPress Query infomation
Added Request parsing information

0.2

Added PHP Notice / Warning tracking when WP_DEBUG enabled
Added deprecated function usage tracking

0.1

Initial Release