Exploring WordPress Debug Mode: Unveiling Its Power and Usage

Wordpress debug mode
Discover the significance of WordPress Debug Mode in troubleshooting website issues. Learn how to enable and disable this feature to enhance your site's performance and development process.

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WordPress, being the powerhouse behind millions of websites, has become the go-to platform for bloggers, businesses, and developers. Yet, with great power comes the occasional technical glitch. Enter WordPress Debug Mode – an invaluable tool that can help you unravel the mysteries behind website issues, ensuring a smoother user experience and a more efficient development process.

What is WordPress Debug Mode?

WordPress Debug Mode is a feature designed to assist developers in identifying and resolving issues within their website’s code. When enabled, it displays error messages, warnings, and notices that might not be visible in the standard user view. This allows developers to spot and rectify coding errors, plugin conflicts, and other issues that might affect a site’s functionality or performance.

The Relevance of WordPress Debug Mode

Debugging is an essential part of website development and maintenance. Here’s why WordPress Debug Mode is relevant:

  • Efficient Troubleshooting: Debug Mode provides detailed error messages, making it easier for developers to pinpoint the exact source of an issue, saving time and effort.
  • Real-time Insights: It provides real-time feedback about the code execution, helping developers identify potential bottlenecks and performance-related concerns.
  • Plugin and Theme Development: For plugin and theme developers, Debug Mode ensures that the code meets WordPress coding standards and doesn’t conflict with other elements on the website.
  • Enhanced User Experience: Identifying and fixing issues promptly translates to an improved user experience, reducing frustration caused by broken features or errors.
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Enabling and Disabling WordPress Debug Mode

Enabling and disabling WordPress Debug Mode is relatively simple:

Enabling Debug Mode:

Access your WordPress site’s root directory via FTP or cPanel File Manager.

Locate the wp-config.php file.

Open the file for editing and add the following lines just before the line that says /* That’s all, stop editing! Happy blogging. */:


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define( 'WP_DEBUG', true );define( 'WP_DEBUG_DISPLAY', false );define( 'WP_DEBUG_LOG', true )


WP_DEBUG: This activates the Debug Mode.

WP_DEBUG_DISPLAY: This prevents errors from displaying on the site.

WP_DEBUG_LOG: This saves the errors to a debug log file (found in the /wp-content/ directory).

Disabling Debug Mode:

To turn off Debug Mode, simply edit the wp-config.php file again and set WP_DEBUG to false:


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define( 'WP_DEBUG', false );

Remember to remove or comment out the lines you added earlier for enabling Debug Mode.

Enabling or Disabling WordPress Debug Mode Using Plugins

Enabling or disabling WordPress debug mode using plugins is a user-friendly alternative to manually editing the wp-config.php file. Here’s how you can do it using two popular plugins:

1. Query Monitor:

Query Monitor is a powerful debugging plugin that not only helps you enable WordPress debug mode but also provides extensive insights into your site’s performance, queries, hooks, and more.

Enabling Debug Mode with Query Monitor:

  • Install and activate the “Query Monitor” plugin from the WordPress plugin repository.
  • Once activated, go to your WordPress admin dashboard.
  • You’ll now find a “Query Monitor” option in your admin bar at the top of the screen. Click on it.
  • In the Query Monitor panel, click on the “Debugging” tab.
  • Toggle the “WP_DEBUG” option to enable it.
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Disabling Debug Mode with Query Monitor:

Follow the steps above to access the Query Monitor panel.

In the “Debugging” tab, simply toggle off the “WP_DEBUG” option to disable it.

2. Debug Bar:

Debug Bar is another widely used plugin for debugging and profiling WordPress websites. It offers a simple way to enable WordPress debug mode.

Enabling Debug Mode with Debug Bar:

  • Install and activate the “Debug Bar” plugin from the WordPress plugin repository.
  • Once activated, go to your WordPress admin dashboard.
  • You’ll notice a “Debug” option in your admin bar. Click on it.
  • In the Debug Bar dropdown, click on “Debug”.
  • Toggle the “Enable WP_DEBUG” option to enable debug mode.

Disabling Debug Mode with Debug Bar:

Follow the steps above to access the Debug Bar dropdown.

Click on “Disable WP_DEBUG” to turn off debug mode.

Using these plugins, you can conveniently toggle WordPress debug mode on and off without directly modifying your site’s code. Remember that while these plugins make the process more user-friendly, it’s a good practice to disable debug mode when you’re done troubleshooting to prevent sensitive information from being displayed to users.

It’s important to note that using plugins for enabling or disabling debug mode is especially helpful for non-developers or those who are not comfortable editing code files. However, if you’re comfortable with code editing, the manual method using the wp-config.php file as mentioned in the previous response remains a valid option.


WordPress Debug Mode is a powerful tool that empowers developers to identify and rectify issues quickly, contributing to a seamless user experience and efficient development process. By understanding how to enable and disable Debug Mode, you’ll have a valuable resource at your disposal to maintain, troubleshoot, and enhance your WordPress website effectively. So, the next time your website encounters a hiccup, don’t forget to tap into the potential of WordPress Debug Mode. Your website and its users will thank you!

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