Title: BlackBox Debug Bar
Author: Greg Winiarski
Published: <strong>February 2, 2011</strong>
Last modified: March 4, 2013

---

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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.

![](https://s.w.org/plugins/geopattern-icon/blackbox-debug-bar.svg)

# BlackBox Debug Bar

 By [Greg Winiarski](https://profiles.wordpress.org/gwin/)

[Download](https://downloads.wordpress.org/plugin/blackbox-debug-bar.zip)

 * [Details](https://wordpress.org/plugins/blackbox-debug-bar/#description)
 * [Reviews](https://wordpress.org/plugins/blackbox-debug-bar/#reviews)
 *  [Installation](https://wordpress.org/plugins/blackbox-debug-bar/#installation)
 * [Development](https://wordpress.org/plugins/blackbox-debug-bar/#developers)

 [Support](https://wordpress.org/support/plugin/blackbox-debug-bar/)

## Description

BlackBox is symfony like unobstrusive debug bar attached to the top of the browser
window.

How can it help you with development:
 1. instantly inspect global variables (GET,
POST, COOKIE, SERVER) 2. debug both frontend and admin area 3. executed MySQL queries
and time it took to execute each query (useful for finding slow queries) 4. profiler
for measuring performance of your plugins and themes 5. errors occurred when loading
WordPress page

## Screenshots

 * [[
 * Glabal variables foramted using var_export() function, syntax coloring using 
   awesome highlight.js library (75% zoom)
 * [[
 * Profiler tab. Displays checkpoint name, time passed since profiler start and 
   current memory usage (75% zoom)
 * [[
 * SQL tab. Displays each query execution time and the executed queries. Syntax 
   highlighting using highlight.js library (75% zoom)
 * [[
 * Errors tab. Displays error type and the error message. If the error occured more
   then once its type is displayed as “Notice (X)” where X is the number of error
   occurances.

## Installation

This section describes how to install the plugin and get it working.

 1. Upload plugin to `/wp-content/plugins/` directory
 2. Activate the plugin through the ‘Plugins’ menu in WordPress
 3. Done!

## Reviews

![](https://secure.gravatar.com/avatar/54b9eccdb459b37e864b7a23f3d55e0958eafeb77fbf0e5df2c1a6c095b6c459?
s=60&d=retro&r=g)

### 󠀁[Displays for visitors & can’t access plugins](https://wordpress.org/support/topic/displays-for-visitors-cant-access-plugins/)󠁿

 [jolanxbl](https://profiles.wordpress.org/jolanxbl/) September 17, 2021

The bar displays on the main site for people not signed in and visiting the site.
Could not access the plugins section of WordPress to deactivate it; had to remove
through File Manager. Status bar just sits at “Waiting for [site].com”

![](https://secure.gravatar.com/avatar/856e8066daaed849844c6bd0f17da05869aa048e79c0340b5b9268198be706f0?
s=60&d=retro&r=g)

### 󠀁[Essential plugin in my developer toolset](https://wordpress.org/support/topic/essential-plugin-in-my-developer-toolset/)󠁿

 [Anna Bansaghi](https://profiles.wordpress.org/annabansaghi/) June 2, 2018

Immediate feedback on a great majority of errors. Added a conditional red background
to the Errors, and with this modification I have never miss even a notice anymore.
Thank you very much!

 [ Read all 15 reviews ](https://wordpress.org/support/plugin/blackbox-debug-bar/reviews/)

## Contributors & Developers

“BlackBox Debug Bar” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ Greg Winiarski ](https://profiles.wordpress.org/gwin/)

[Translate “BlackBox Debug Bar” into your language.](https://translate.wordpress.org/projects/wp-plugins/blackbox-debug-bar)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/blackbox-debug-bar/),
check out the [SVN repository](https://plugins.svn.wordpress.org/blackbox-debug-bar/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/blackbox-debug-bar/)
by [RSS](https://plugins.trac.wordpress.org/log/blackbox-debug-bar/?limit=100&mode=stop_on_copy&format=rss).

## Meta

 *  Version **0.1.3**
 *  Last updated **13 years ago**
 *  Active installations **90+**
 *  WordPress version ** 3.0.0 or higher **
 *  Tested up to **3.5.2**
 * Tags
 * [debug bar](https://wordpress.org/plugins/tags/debug-bar/)[debugging](https://wordpress.org/plugins/tags/debugging/)
 *  [Advanced View](https://wordpress.org/plugins/blackbox-debug-bar/advanced/)

## Ratings

 4.6 out of 5 stars.

 *  [  12 5-star reviews     ](https://wordpress.org/support/plugin/blackbox-debug-bar/reviews/?filter=5)
 *  [  1 4-star review     ](https://wordpress.org/support/plugin/blackbox-debug-bar/reviews/?filter=4)
 *  [  1 3-star review     ](https://wordpress.org/support/plugin/blackbox-debug-bar/reviews/?filter=3)
 *  [  1 2-star review     ](https://wordpress.org/support/plugin/blackbox-debug-bar/reviews/?filter=2)
 *  [  0 1-star reviews     ](https://wordpress.org/support/plugin/blackbox-debug-bar/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/blackbox-debug-bar/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/blackbox-debug-bar/reviews/)

## Contributors

 *   [ Greg Winiarski ](https://profiles.wordpress.org/gwin/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/blackbox-debug-bar/)