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lock_reset TYPO3 Know-How

Changing the TYPO3 Install Tool Password

The Install Tool is where you configure core system settings for your TYPO3 installation. If the password is no longer known, or the backend is unreachable, it can be reset with direct access to the web server.

history Letzte Änderung: 13.08.2025

When Do You Need This?

The Install Tool is directly accessible at <yourdomain>/typo3/install.php – all you need for this is the Install Tool password, no username required. Alternatively, it can also be opened from within the regular TYPO3 backend, provided the logged-in user has both admin and maintainer rights.

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If the password is no longer known or the backend is unreachable for other reasons, the only remaining option is via the web server: to reset it, you'll need FTP or SSH access to your hosting.

Step by Step: Resetting the Password

The following steps apply to common current TYPO3 versions; the process may differ slightly for older installations.

  1. In the TYPO3 installation directory on the web server, under var/transient, create an empty file named ENABLE_INSTALL_TOOL.

  2. Open the Install Tool at <yourdomain>/typo3/install.php.

  3. Enter the new password you want. TYPO3 initially rejects the login and shows the matching hash value in the error message.

  4. Copy that displayed hash value.

  5. On the server, open the file config/system/settings.php and replace the value of the installToolPassword key with the copied hash. In some installations, this key is instead located in additional.php.

  6. Log in to the Install Tool again with your new desired password.

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