Debug Bar
Adds a debug menu to the admin bar that shows query, cache, and other helpful debugging information.
4.1(69 reviews)
·20K+ active installs·Updated 1 month agoAs of April 2026, Debug Bar is a WordPress debug plugin with 20K+ active installations and a 4.1/5 rating from 69 reviews. It has been downloaded 2.1M+ times in total. Requires WordPress 3.4+ and PHP false+. Available on WordPress.org since 2010. Recently updated within the last 3 months. Download volume is stable this week. Top alternative: WP Crontrol.
4.1/569 reviews
20K+active installs
2.1M+total downloads
16 yearssince 2010
Overview
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’.
Ratings & Reviews
4.169 reviews
5 ★
51
4 ★
3
3 ★
1
2 ★
1
1 ★
13
Recent Reviews
Simple and easy
by Lene·1 week ago
It works…
Works perfectly
by Michael Galli·4 months ago
Finding bugs is very easy and efficient with that plugin. I can highly recommend it.
Seemingly abandoned
by James Hunt·8 months ago
Debug Bar is still listed in WordPress’s own developer documentation as a go-to debugging tool, yet it hasn’t been updated in over a year and throws PHP errors. It’s a clear example of Automattic promoting a tool while failing to maintain it – a pattern that’s become too common. For a plugin they recommend, its neglect is frustrating and undermines developer trust.
Getting translation errors in WP 6.7
by Traci Larson·10 months ago
This is a very useful plugin, but I am getting errors when WP_DEBUG is set to true based on the updates in WordPress 6.7.
Notice: Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>.
I hope there will be an update soon!
it must be!
by Marcin Pietrzak·2 years ago
A plugin without which I cannot imagine my work. It would definitely be much more difficult.
Download Trends
Today: 2KYesterday: 1KThis week: 10KPeriod total: 367K
Compatibility
| WordPress | 3.4+ requiredTested up to 7.0 |
| PHP | false+ required |
Version Adoption
v1.1
88.4%
Other
11.6%
Top Alternatives to Debug Bar
Frequently Asked Questions
Changelog
1.1.8
- Add late output escaping where missing in the
WP_Querypanel.
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.