Creating an organized Project based on the PMBOK can be a breeze and the interface is very intuitive if you've ever used MS Project. This is truly a great free and open source alternative to MS Project, especially if you want to do traditional project management based on the PMBOK

ProjectLibre has simple commands to schedule jobs, phases and activities. It is also possible to see the progress of the activities. It has an excellent schedule of the Gantt chart that helps the work schedule and allows to adjust each one of the needs. Finally, this software properly handles XML export.

Not Only Scheduling, ProjectLibre facilitates flexibility in dates at any point. Its security feature takes care of the aligning dates on its own if you have linked your module to other so change in predecessor module automatically changes dates in its inherited module. Most liked feature, according to me, is its versatility. Just fill the spreadsheet and in output you can generate 4 charts i.e. gantt, network, WBS, network usage chart along with crucial reports. Additionally, resources can also be assigned to individual module and completion status of the modules can be checked at any time.