This is a plugin for Redmine (www.redmine.org) to synchronize an issue tracker with data from a GanttProject file. It currently supports importing and updating tasks in a tracker of your choice.
You can find the code at GitHub: github.com/milgner/redmine_ganttproject_sync/ The actual issue tracking is at my personal Redmine installation: redmine.marcusilgner.com/projects/ganttprojectsync There you may also find a demo installation to see the plugin in action: redmine.marcusilgner.com/projects/gpsyncdemo (use gpsync/gpsync as login credentials)