Zammad is a web based open source helpdesk and customer support system with many features to manage customer communication via several channels like telephone, Facebook, Twitter, chat and e-mails. It is distributed under version 3 of the GNU AFFERO General Public License (GNU AGPLv3). This app will unite your communication channels and make your helpdesk experience way better. The use is easy and free! Since version 3 we offer a Knowledge-Base for Support-Agents and Customers to prevent the creation of tickets and help customers, even when no supporter is available.