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Black Bar
Black Bar is an unobtrusive Debug Bar for WordPress developers that attaches itself to the bottom of the browser window.
The facts
- Rating
- 5★ from 9
- Active installs
- 500+
- Price
- Free
- Last updated
- 17 May 2026
- Added
- Feb 2018
- Requires WP
- 6.7
- Tested up to
- WP 7.0.4
- Requires PHP
- 8.1.2
- Downloads
- 42,288
Our analysis
AI-assistedBlack Bar is a WordPress plugin designed for developers to assist in debugging and performance measurement. It collects various data such as errors, executed SQL queries, and slow actions, presenting this information in an unobtrusive debug bar. This tool is particularly useful for those who need to inspect global variables, view PHP errors, and analyze the performance of their code during development.
The plugin supports features like a console for debugging, a profiler for performance measurement, and detailed views of executed MySQL queries and template files. It is suitable for web developers and designers who require a reliable way to debug and optimize their WordPress sites.
Best for: Web developers and designers looking for a debugging tool for WordPress.
What it does well
- ✓Collects and displays errors and executed SQL queries
- ✓Includes a profiler for measuring code performance
- ✓Allows inspection of global variables
- ✓Displays PHP errors in the Console
- ✓Shows the 50 slowest action and filter hooks
Where it falls short
- •Limited information on user experience or interface
- •No mention of support or documentation
Verdict
Black Bar offers useful debugging features for developers, though details on user experience and support are lacking.
From the developer
Gemini Labs's own description of Black Bar, lightly tidied.
Black Bar is an unobtrusive Debug Bar for WordPress developers. It collects and displays errors, executed SQL queries, slow actions and hooks, theme templates, global variables, and provides a profiler.
How it helps you with development:
- 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
Tagged as
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