Drupal is a free, open source software that gives designers the extra ounce of flexibility. You can modify as and when you want to. Also sharing and content distribution are easier via Drupal. Drupal is perfect for both small and big business and can adapt to the size of the enterprise it is serving.Drupal designers do not need to put in extra work for building a mobile website, so does not need to put in extra time. This saves a lot of effort, time and money as compared to other CMS.