Take your office and CRM into the cloud!
sleek is a todo.txt manager, free and open-source (FOSS)
Free & Open Source - Project / Task / Time & Team Management Software
Multi platform library to read and write schedule data
The Freeplane add-on that syncs a GTD mind map with a todo.txt file
Excel Gantt, easy Scheduling for fast Planning
Human Capital Management system
Collabtive is web based project management software. Simple and easy.
Project and Portfolio Management
Project & Task Manager
task management, bug tracking, kanban, project management
A C++ schedule generator based on Genetic Algorithm and Hill Climbing
Open Source, tasks, bug tracking, agile scrum, timesheet, wiki
Microsoft Project Plan (MPP) Viewer
PXell - Online project management.
Open Source desktop project management