Config Constants
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.
Use with caution
Config Constants works, but test it on a staging site before relying on it in 2026. It runs on 100+ sites, is rated 5/5 and was last updated 2 months ago, and scores 53/100 on our health check.
- Small user base (100+ active installs)
- Very few reviews so far
- Only tested up to WordPress 4.8 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Config Constants stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| config | >100 |
| constant | >100 |
| debug | >100 |
| mode | >100 |
| wp-config. wp-config.php | #98 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 1 reviews
About Config Constants
From the official readme · v0.2Description
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.
Installation
Instructions for installing:
- In your WordPress admin go to Plugins -> Add New.
- Enter Config Constants in the text box and click Search Plugins.
- In the list of Plugins click Install Now next to the Config Constants Plugin.
- Once installed click to activate.
- Visit the Plugin options page via Settings -> Config Constants.
- On the Plugin options page some/all of the supported constants may be initially disabled as you can only modify existing constants defined in wp-config.php. To be able to edit a constant directly in the admin just add it to your wp-config.php file and it will get picked up automatically in the Plugin settings.
Changelog
0.2
- Plugin completely overhauled to work with WordPress 4.8 and fix outdated code.
0.1
- Initial release.
Screenshots
For developers
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Best Config Constants alternatives
All config plugins →
FAQ
Config Constants: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 1, 2026
Is Config Constants free?
Yes. Config Constants is free to download and use from the official WordPress.org plugin directory.
Is Config Constants safe to use in 2026?
Config Constants works, but test it on a staging site before relying on it in 2026. It runs on 100+ sites, is rated 5/5 and was last updated 2 months ago, and scores 53/100 on our health check.
How many websites use Config Constants?
Config Constants is active on 100+ WordPress websites and has been downloaded 7,723 times since it launched in May 2012. It was downloaded 81 times in the last 30 days.
Does Config Constants work with WordPress 7.1?
Config Constants is officially tested up to WordPress 4.8.32, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Config Constants last updated?
The latest version, 0.2, was released on August 11, 2026 (2 months ago).
Who makes Config Constants?
Config Constants is developed and maintained by David Gwyer.
What are the best alternatives to Config Constants?
The most popular alternatives to Config Constants are Brozzme DB Prefix & Tools A… (10K+ installs), Developer Debug Tools (100+ installs) and Configurator (60+ installs).
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