Contao Open Source CMS
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Contao Open Source CMS

Contao is an Open Source PHP Content Management System for people who want a professional website that is easy to maintain. Visit the project website for more information.

System requirements

  • Web server
  • PHP 5.4.0+ with GDlib, DOM, Phar and SOAP
  • MySQL 5.0.3+


See the installation chapter of the user's manual.



Contao is licensed under the terms of the LGPLv3. The full license text is available in the system/docs folder.

Note that the LGPL incorporates the terms and conditions of the GPL, therefore both licenses are included there. This, however, does not imply that Contao is dual licensed under both the GPL and the LGPL.

Getting support

Visit the support page to learn about the available support options.

Installing from Git

We are using Composer to manage third-party scripts, so after you have cloned the repository, make sure to install the vendor libraries:

git clone
cd core
php composer.phar install --prefer-dist