Change wp-config.php settings

Updated October 7, 2026 · 2 min read

View and change the settings in a WordPress site’s wp-config.php from the dashboard, and add your own constants, without touching the file by hand.

On this page
  1. Step 1: Open the wp-config.php card
  2. Step 2: Open it
  3. Step 3: Change a setting
  4. Step 4: Add your own setting
  5. Step 5: Save and close
  6. Managed by Nuvlo

Before you start

  • The owner or admin role in the account. Developers and viewers can’t open wp-config.php.
  • Your Nuvlo password, or your authenticator app if two-factor sign-in is on.
  • A running WordPress site in Nuvlo.

Step 1 Open the wp-config.php card

Open the site and click the Settings tab. The wp-config.php card is below PHP.

The wp-config.php card, closed.

Nuvlo keeps wp-config.php outside the site’s web folder, so it can’t be downloaded through the site.

Step 2 Open it

Click Open wp-config.php. Nuvlo reads the file from the server; passwords and keys stay hidden.

Step 3 Change a setting

Under Settings you can change, edit the value next to a name. Rows marked Default are Nuvlo defaults you can change but not remove. On a new site they include:

SettingNew sites start with
WP_POST_REVISIONS10
EMPTY_TRASH_DAYS14
DISALLOW_FILE_EDITtrue (no theme and plugin file editor in WordPress admin)
WP_AUTO_UPDATE_COREminor
WP_MEMORY_LIMIT256M
WP_MAX_MEMORY_LIMIT512M

Numbers, true, false and null are saved as they are. Anything else is saved as text. Put a value in quotes to keep it as text.

Step 4 Add your own setting

Click Add setting, type a name in capital letters, digits and underscores, for example MY_SETTING, and a value. Remove your own settings with the bin button.

Some names can’t be set here, because Nuvlo manages them: database settings, security keys and salts, the site address, Redis settings and DISABLE_WP_CRON. For WP_DEBUG and related settings, use the Debug log switch instead. See Change PHP settings.

Step 5 Save and close

Click Save wp-config.php. Nuvlo checks the file before using it:

  • A change that would break the file isn’t saved.
  • If the site stops working with the change, Nuvlo puts the previous settings back and tells you the error the site answered with.
  • If someone else changed the file since you opened it, reload and make your change again.

Click Lock when you’re done to close the file again.

Managed by Nuvlo

The Managed by Nuvlo list shows settings that change through their own dashboard settings: domain, PHP, debug log and caching. Passwords and keys show as Hidden and never leave the server.

wp-config.php can only be opened in the dashboard, not with an API token.