Black Bar
by Gemini Labs · WordPress.org page · Website
Black Bar has 500+ active installs on WordPress.org and 43,409 downloads all time. It was downloaded 655 times in the last 30 days. The last update was on May 17, 2026, tested up to WordPress 7.0.7.
Black Bar at a glance
Is Black Bar well maintained?
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.
9 reviews
- 5★
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9
- 4★
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0
- 3★
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0
- 2★
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- 1★
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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 ☄
Download and install history
1,008 downloads over the last 48 days. Snapshots taken daily from WordPress.org.
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
-
Site Reviews 60,000+ installs -
Pollux 10+ installs
- Version
- 4.2.0
- Last updated
- May 17, 2026
- First published
- Feb 22, 2018
- Requires WordPress
- 6.7
- Tested up to
- 7.0.7
- 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 October 22, 2026.
Is Black Bar still maintained?
Yes. The last release was on May 17, 2026 and it is tested up to WordPress 7.0.7.
Is Black Bar free?
Black Bar is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.