OpenProject

https://www.openproject.org/ OpenProject is open source project management software. Established in 2012 OpenProject supports your projects throughout the whole life-cycle.  OpenProject is designed to support your project teams throughout the whole project lifecycle and offers collaborative project planning, timeline reports, task management, time and cost reporting, Scrum, and much more. Some aspects of OpenProject, which makes this tool stand out, are its user interface, extensive documenta...
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ProjectLibre

http://www.projectlibre.com/product/projectlibre-open-source ProjectLibre is the leading open source alternative to Microsoft Project.   It has been downloaded over 3,000,000 times in over 200 countries and has won InfoWorld "Best of Open Source" award. ProjectLibre is compatible with Microsoft Project 2003, 2007 and 2010 files. You can simply open them on Linux, Mac OS or Windows. ProjectLibre key features:    Compatibility with Microsoft Project    Gantt Chart    Network Diagra...
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LibrePlan

http://www.libreplan.org/open-source/download/ LibrePlan is a collaborative tool to plan, monitor and control projects and has a rich web interface which provides a desktop alike user experience. All the team members can take part in the planning and this makes possible to have a real-time planning . LibrePlan is open source and you can download, install and customize it for free.  LibrePlan is a web-based application, making project management available to not just the project manager, but t...
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