Last updated on
9 May 2017

Note: this page should not be edited without first discussing the changes in a Drupal Core issue as the requirements for each version of Drupal are decided upon by the Drupal Core developers.

To install and run Drupal your web server must meet certain minimum requirements. Most web hosting companies meet these requirements. However, a few stand out by also actively supporting the Drupal community. If you need hosting, consider selecting one of these web hosts.


Note that the minimum requirements of Drupal core can be subject to change, given an important enough reason. Where such a change is likely to have broad impact on Drupal's user base, every effort will be made to communicate these decisions ahead of time.

Disk space

A minimum installation requires 15 Megabytes. 60 MB is needed for a website with many contributed modules and themes installed. Keep in mind you need much more for the database, files uploaded by the users, media, backups and other files.

Web server

Apache, Nginx, Microsoft IIS or any other web server with proper PHP support.
More details about web server requirements.


  • MySQL 5.0.15/MariaDB 5.1.44/Percona Server 5.1.70 or higher with PDO,
  • PostgreSQL 8.3 or higher with PDO,
  • SQLite 3.3.7 or higher

Microsoft SQL Server and Oracle are supported by additional modules.
More details about database requirements.


PHP 5.2.5 or higher (5.4 or higher recommended).

More details about PHP requirements, including PHP memory.

See also the Site Performance section of the Administration Guide and the webhosting troubleshooting FAQ.