GanttProject

GanttProject is a program with which you create tasks and milestones. In addition to the date and duration of the run, each task can have a higher priority, a fill color and pattern, text notes, and user-defined custom fields.

You can organize tasks in a work breakdown structure . A hierarchical tree where the progress, dates or cost of lower level tasks is summarized at higher levels. Summary tasks can be collapsed to hide tasks that are not important at the moment.

Draw dependency constraints between tasks, such as "start X when Y finishes" and GanttProject will take care of enforcing these constraints. You can add delays or use other types of constraints.

Create baselines , so that you can compare the current state of the project with previous plans.

PERT diagram for read-only view can be generated from a Gantt chart.