Twill is an open source CMS toolkit for Laravel
Odamex is a free, cross-platform, modern client-server Doom engine
The Free / Libre / Open Source Web App with the most built-in features
Content management system built on PHP, MySQL, Twitter Bootstrap
Proxy Cache and Web filtering Appliance
Lighweight CRM, easy to use Kickstarter for web based ERP
Java Application Framework
PHP Template with placeholders and sections
The Free & Popular FLARUM Web Software in a Complete Virtual Machine
Responsive Web App development full-stack framework in PHP and JS
Zenoss - Intelligent IT Operations Management
A canvas library for generating technical drawings
Declarative rich internet application platform
Generates text that depends on changing data (like dynamic HTML).
Mature SGBD in Perl with a web interface
GTAjax is Generally-Targeted AJAX.
Equake monitors and displays earthquakes in your gnome panel