Collabtive – Open Source Collaboration

About

Collabtive is web-based project management software.
The project was started in November 2007. It is open source software and provides an alternative to proprietary tools like Basecamp. Collabtive is written in PHP and JavaScript.

Collabtive – Open Source Collaboration http://collabtive.o-dyn.de/

Plugins include a mobile app, Gantt charts, project templates.