open source project management software

Open source project management software is a growing area. Competing against leading proprietary project management software like Microsoft Project, many open source solutions are reaching maturity. Here is a list of the most promising open source project management software:

ZenTrack

Zentrack is a complete project management, bug tracking, ticket, and tech support/help desk/phone log system. Tracker is configurable and adaptable, simple design. Supports mySql, Oracle, postgres, Windows and Unix.

dotProject

dotProject is a web-based, multi-user, multi-language Project Management application

Phprojekt

PHProjekt is a modular application for the coordination of group activities and to share informations and document via intranet and internet.

Open Workbench

Open Workbench is a desktop application for project scheduling in which you can define a work breakdown structure, set dependencies and resource constraints, assign resources to tasks, automatically generate the schedule and then monitor progress.

Teamwork

Teamwork is a software application specifically for team work management. If your company works in teams then this is the application for you, as you can manage large volumes of information and operate effectively with your team members on complex projects. Teamwork will improve worklife quality, helping production cycle information flow management, via stage coordination and allocating tasks to everyone involved. As an application, Teamwork combines document management, groupware and project management features in a new perspective.

OpenProj

OpenProj is a free, open source desktop alternative to Microsoft Project.

KPlato

KPlato is a project management application.

Project.net

Project.net is a complete, web-based enterprise project management application that helps companies plan, execute and deliver on their entire portfolio of projects.
Project.net is Commercial Open Source.