Open-Source Software

Computer software that is distributed under a licensing arrangement and which allows the computer code to be freely shared, viewed and modified by other users and organizations.

Drupal is open source software maintained and developed by a community of hundreds of thousands of users and developers all over the world. It's distributed under the terms of the GNU General Public License (or "GPL"), which means anyone is free to download it, share it with others, and contribute back to the project. This open development model means that people are constantly working to make sure Drupal is a cutting-edge platform that supports the latest technologies that the Web has to offer.