Admidio is a free open source user management system for websites
Award-winning lightweight Open Source Content Management System (CMS)
Manage your organization online
AvoRed an Open Source Laravel Shopping Cart
Login with Multiple Hierarchies of User and Members!
A ready-to-use CodeIgniter skeleton with tons of new features
Free and Open Source Web Sites Builder
FrequencyCMS is a a light-weight, free and open source CMS.
Php User Login System Exentended