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Config Constants
Modify WP_DEBUG and other WordPress constants directly in the WordPress admin rather than manually editing them via wp-config.php!
The facts
- Rating
- 5★ from 1
- Active installs
- 100+
- Price
- Free
- Last updated
- 11 Aug 2026
- Added
- May 2012
- Requires WP
- 4.0
- Tested up to
- WP 4.8.30
- Downloads
- 7,640
Our analysis
AI-assistedConfig Constants is a WordPress plugin that allows you to edit certain WordPress constants directly from the WordPress admin interface, rather than manually modifying the wp-config.php file. This is particularly useful for developers who need to change settings like WP_DEBUG or SCRIPT_DEBUG frequently without the hassle of file editing.
The plugin currently supports a range of constants, including WP_DEBUG, WP_DEBUG_LOG, and others. It also features two-way editing, meaning changes made in the plugin settings will be reflected in wp-config.php and vice versa. However, it is still in beta and not recommended for use on production sites without backups.
Best for: This plugin is suited for developers who frequently modify WordPress constants during development.
What it does well
- ✓Allows editing of WordPress constants from the admin interface
- ✓Supports two-way editing with wp-config.php
- ✓Automatically adds constants if not defined in wp-config.php
Where it falls short
- •Still in beta; not recommended for production sites
- •Limited to specific WordPress constants
Verdict
Config Constants provides a convenient way to manage WordPress constants, but its beta status suggests caution for production use.
From the developer
David Gwyer's own description of Config Constants, lightly tidied.
NOTE: This Plugin is still in beta. It’s recommended that you don’t run this Plugin on production sites yet, and don’t forget to backup your wp-config.php file.
WordPress constants such as WP_DEBUG can be defined in wp-config.php but have to be edited manually every time you need to make a change. But no longer! You can now edit several common wp-config.php constants directly from within the WordPress admin!
The current list of WordPress constants you can modify with Config Constants are:
- WP_DEBUG
- WP_DEBUG_LOG
- WP_DEBUG_DISPLAY
- SCRIPT_DEBUG
- CONCATENATE_SCRIPTS
- SAVEQUERIES
- DISALLOW_FILE_MODS
- DISALLOW_FILE_EDIT
- WP_ALLOW_REPAIR
More constants will be supported in future versions.
If none of the above constants are defined in wp-config.php then they will be added automatically. Constants already specified in wp-config.php will have their values modified.
Also, a key feature of the Plugin is the support for two-way editing. This means you can still edit wp-config.php constants manually if you wish and your changes will be automatically synchronised with Plugin settings. Likewise, if you update the value of a constant via the Plugin options page then wp-config.php is immediately updated!
Please rate this Plugin if you find it useful. 🙂
Visit our WordPress plugin site.
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purpose
Code Snippets & Developer Tools
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