Twelve Free Project Management Software Applications

I’ve been going through some of my lists of free Project Management software applications, checking that they are still free and still available.  I currently have twelve on my list but I would be delighted to hear from you if you have any other open-source software you think I should add.

Clocking IT
ClockingIT is a free hosted application, keeping track of all your tasks and the time you spend on them.

DotProject

dotProject is a web-based project management application, designed to provide project layout and control functions.

GanttProject
GanttProject is a cross-platform desktop tool for project scheduling and management.

JxProject
JxProject is a free project management software package: a version without adverts is available for $20.

Open Atrium
Open Atrium is an open source team collaboration tool and includes a blog, a wiki, a calendar, a to do list, a shoutbox, and a dashboard to manage it.

OpenProj
OpenProj is an open-source desktop project management application similar to Microsoft Project. OpenProj opens existing MS Project files and is interoperable with Project, Gantt Charts and PERT charts.

Project HQ
Project HQ is a collaborative open source project management tool, similar to Basecamp and activeCollab.  Project HQ uses a structured workflow to assist you in managing your projects.

ProjectPier
ProjectPier is a free, open-source, PHP application for managing tasks, projects and teams through a web interface.

ProjectStat.us
ProjectStat.us is a service that can help you manage your customers’ project info and allow your customers to see up-to-date project information at any time.

SugarCRM
CRM-focused software. There is a free Community Edition but other software is not open source and is not free.

TaskJuggler
Free and open source software project management tool that covers most project management tasks.

Teambox
Teambox is a mix of social collaboration tool and online project management for sharing tasks and projects with a team.  Only free for the first three projects, then a pricing plan comes into effect.

Added:

Another 2 free packages:

Project in a Box
The free Community Edition of Project in a Box uses PRINCE2 materials and templates.

Tree.io
Tree.io is a cloud-based service with unlimited projects and storage.  The first 3 users are free – after that you pay $15 per user per month.