.. include:: /Includes.rst.txt .. _system-requirements: System Requirements ^^^^^^^^^^^^^^^^^^^ TYPO3 requires a web server, PHP and a database system. * TYPO3 requires a web server which can run PHP (Apache httpd, Nginx, Microsoft IIS). * TYPO3 8 requires PHP >= 7.0.8 <= 7.4.99. * TYPO3 can be used with a great many database systems (MariaDB >= 10.0.0 <= 10.2.26, Microsoft SQL Server, MySQL >= 5.0 <= 5.7, PostgreSQL). If you use an Apache web server, the module mod_rewrite must be activated. Certain PHP extensions are necessary, others recommended. You possibly want to adjust the memory limit; at least 128 MB is recommended. If you want TYPO3 to automatically carry out image processing – for example scaling or cropping – you will need GraphicsMagick or ImageMagick (version 6 or newer) installed on the server. A detailed list of these requirements is enclosed in the file `INSTALL.md `_ inside the TYPO3 source package. Should you encounter problems, the ":ref:`troubleshooting`" section at the end of this document will help.