Acquia Dev Desktop is a free app that allows you to run and develop Drupal sites locally on your computer.

You can use Acquia Dev Desktop to evaluate Drupal, test modules, and develop sites while on a plane or away from an internet connection.

provides a fully functional test area with minimal set-up required. While setting up your own server configuration isn't overly hard on Linux, it can be on Windows and Mac. Acquia Dev Desktop is available for Windows and Mac.