Powerful Open Source Email Marketing app with analytics & segmentation
The Free / Libre / Open Source Web App with the most built-in features
WackoWiki is a light and easy to install multilingual Wiki-engine.
PHP Document Management System (DMS)
RhinOS, CMS, Content Management System, Josep Sanz Campderrós
Internet Discussion Boards is a message board system by Game Maker 2k.
Open source project management
phpBB is the world's leading open source discussion forum software.
Open Source Enterprise Wiki and Web Application Platform
An open source search engine with RESTFul API and crawlers
Gnew is a simple Content Management System (CMS)
Portal script, content management system, site management system, etc
Open Source SIEM
The collection of extensions for MediaWiki software.
Free and open source webmail software
Open Source Learning Management System
A PHP web based password manager for SysAdmins