GanttProject - free Project Management software

GanttProject is GPL-licensed (free software) Java based, project management software.

http://www.ganttproject.biz/

https://en.m.wikipedia.org/wiki/GanttProject

The major features include:

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Create Work Breakdown Structure

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Task Hierarchy and Dependencies

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Gantt Chart

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Resource Load Chart

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Baselines saving and comparing

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Generation of PERT Chart

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PDF and HTML Reports

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MS Project import/export with file format MPX (*.mpx) and MSPDI (*.xml) (XML-based data interchange format since Microsoft Project 2002)

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Exchange data with spreadsheet applications

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WebDAV based groupwork

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Project file format is XML

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Vacation and Holidays management

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Available in more than 20 languages