OpenProj is a free, open source desktop alternative to Microsoft Project. OpenProj has been downloaded over 200,000 times in the first weeks since it was released and has quickly become one of the most popular open source applications. If you are managing a group project we recommend Project-ON-Demand.
If you want a free replacement to commercial desktop software, then OpenProj is perfect. It’s available on Linux, Unix, Mac or Windows, and it’s free.
Download: OpenProj 1.0