Amazon affiliate: OpenProj: The OpenSource Solution for Managing Your Projects
For those that love Open Source software – and OpenOffice is just one of many free Open Source software alternatives out there – you might find that you need project management software to produce Gantt Charts.
If that’s the case, then try OpenProj. It is a very useful alternative to Microsoft Project, free, and works on Mac, Linux and Windows.
Download from the OpenProj website.