PluginScout

Black Bar

by Gemini Labs · WordPress.org page · Website

v4.2.0 Tested up to WP 7.0.4 PHP 8.1.2+

Black Bar has 500+ active installs on WordPress.org and 42,434 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on May 17, 2026, tested up to WordPress 7.0.4.

Black Bar at a glance

Active installs
500+
Total downloads
42,434
Downloads, last 30 days
–
available after 30 days of tracking
30-day growth
–
tracking since September 4, 2026

Is Black Bar well maintained?

Support threads resolved
No open threads
nothing waiting on the WordPress.org forum
WordPress compatibility
Behind
tested up to WordPress 7.0.4, not yet with the current 7.1

Features

The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.

  • Debug your code with the Console
  • Inspect global variables (COOKIE, GET, POST, SERVER, SESSION, WP_Screen)
  • Measure performance of your code with the Profiler
  • View any PHP errors that occur when loading a page in the Console
  • View executed MySQL queries along with execution time and backtrace
  • View template files of the active theme in loaded order
  • View the 50 slowest action and filter hooks along with callbacks ordered by priority

Black Bar reviews and ratings

9 reviews on WordPress.org, with the most recent ones as their authors posted them.

All reviews
5.0 out of 5

9 reviews

5★
9
4★
0
3★
0
2★
0
1★
0

  • Useful and easy to use

    This plugin allowed me to pinpoint performance issues, not only within my code, but also in used plugins that were not optimised enough.

    theunnicked

  • Great tool

    Was wondering why my wordpress installation was unbearably slow. This plugin helped me discover the massive amount of SQL queries generated by 2 conflicting plugin settings. Problem solved!

    xorinzor

  • i like it

    nice. thanks for updating. i prefer this extension for debugging.

    ajaxStardust

  • Indispensable / Essential

    Il fait l'affaire haut la main, parfait ;-) It did the trick, perfect ;-)

    informatux

  • Developer must have

    Thank you for giving new life to BlackBox Debug Bar! Not only the usefulness of this plugin, but the beautiful PHP coding leads me to write this review. I have learnt a lot from your code.

    Anna Bansaghi

  • Beautiful way to show the data.

    This is a beautiful way to interpress the data, I am a developer and this plugin helped me correct errors, I really feel very inspired. Thanks for the idea.

    Lenin Zapata ☄

Details

Black Bar is an unobtrusive Debug Bar for WordPress developers that attaches itself to the bottom of the browser window.

The full description, screenshots and every review live on the WordPress.org page.

Tags

  • black bar
  • blackbar
  • debug bar
  • debugbar
  • debugging

More from Gemini Labs

Version
4.2.0
Last updated
May 17, 2026
First published
Feb 22, 2018
Requires WordPress
6.7
Tested up to
7.0.4
Requires PHP
8.1.2
Pricing
Free on WordPress.org

Black Bar FAQ

What does Black Bar do?

According to its WordPress.org readme, Black Bar offers Debug your code with the Console, Inspect global variables (COOKIE, GET, POST, SERVER, SESSION, WP_Screen), Measure performance of your code with the Profiler, View any PHP errors that occur when loading a page in the Console and View executed MySQL queries along with execution time and backtrace.

How many active installs does Black Bar have?

WordPress.org reports 500+ active installs for Black Bar as of September 7, 2026.

Is Black Bar still maintained?

Yes. The last release was on May 17, 2026 and it is tested up to WordPress 7.0.4.

Is Black Bar free?

Black Bar is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.