Plugin info

Total downloads: 1,969,612
Active installs: 20,000
Total reviews: 68
Average rating: 4.1
Support threads opened: 0
Support threads resolved: 0 (0%)
Available in: 19 language(s)
Contributors: 28
Last updated: 7/11/2025 (173 days ago)
Added to WordPress: 11/4/2010 (15 years old)
Minimum WordPress version: 3.4
Tested up to WordPress version: 6.9
Minimum PHP version: f

Maintenance & Compatibility

Maintenance score

Maintained • Last updated 173 days ago • 68 reviews

56/100

Is Debug Bar abandoned?

Likely maintained (last update 173 days ago).

Compatibility

Requires WordPress: 3.4
Tested up to: 6.9
Requires PHP: f

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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.

Frequently Asked Questions

No FAQ available

Review feed

Spacetime
1/24/2018

Great debugging tool

This plugin does a good job. Extremely useful when debugging own plugins.
capbussat
3/27/2018

Very simple and useful

Very simple and useful. (CA) Molt senzill i útil
Jason
12/11/2018

Simple and extensible

This is a great debugging tool with lots of other supporting plugins available.
Trustindex
10/12/2021

We are using it in our plugin support

It is a great help when investigating problematic cases in support of our review plugins
Rasso Hilber
11/24/2021

I couldn't do without it

As the title says. A true lifesaver.

Screenshots

No screenshots available

Changelog

1.1.7

  • Resolves a PHP Warning in WP 6.7+.

1.1.6

  • 1.1.5 didn’t have the minified CSS rebuilt.

1.1.5

  • Update CSS to remove gradient and shadow styles
  • Use dashicons as action buttons instead of misaligned text.

1.1.4

  • Fix PHP8+ critical error if php_uname is disabled

1.1.3

  • Fix notices in HTTP Requests panel when a request is stopped/doesn’t finish.
  • Decode the SQL in the WP_Query panel.

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