OpenProject is the leading open source project management software
Kanban project management software
The open-source kanban
Free project scheduling and management tool
Quality based Open Source Project Organiser.
Free web-based open-source project management application
sleek is a todo.txt manager, free and open-source (FOSS)
Free & Open Source - Project / Task / Time & Team Management Software
Create a visual day countdown with intermediate milestones
WeekToDo is a Free and Open Source Minimalist Weekly Planner and To Do
The Open-source Project Management Tool.
Free flexible open source todo manager featuring hierarchical tasks
A lean, flexible XL test case manager for small to midsize projects
#1 alternative to Microsoft Project : Project Management & Gantt Chart
Redmine Client
Test & requirements management
PDF Measuring and Takeoff Software for Construction
FreelancerBooks -Project Management for Freelancers and Agencies
Excel KPI Dashboard
PWM let you organize your project in a Web 2.0 way.
Stand alone project management web application
Agile + Pomodoro Time Management Freeware