Admidio is a free open source user management system for websites of organizations and groups. The system has a flexible role model so that it’s possible to reflect the structure and permissions of your organization. You can create an individual profile for your members by adding or removing fields. Additional to these functions the system contains several modules like member lists, event manager, guestbook, photo album or download area. You can install Admidio on your webspace if the script language PHP in version 5.6.0 or higher is available. Admidio also needs a MySQL (version 5.0 or higher) or PostgreSQL (version 9.0 or higher) database to run.