The Free / Libre / Open Source Web App with the most built-in features
Lighweight CRM, easy to use Kickstarter for web based ERP
Open source project management
Simple, web-based address & phone book
Open Source Social Network Kit written in PHP
Decentralised PHP based event calendar
'vDrive' - your own Cloud Drive!
date selector with year calendar / Jahreskalender Auswahl
Contao Open Source CMS (fka TYPOlight)
Feature packed web application framework.