OpenProject is open source project management software for classic, agile or hybrid ways of working. For task management it offers, among other things, Gantt-chart planning, agile boards for Scrum and Kanban, and a team planner for assigning tasks to colleagues on a weekly or bi-weekly calendar. The software is released under the GNU GPL v3. You can run it yourself on your own servers (on-premises) or use a cloud environment hosted by OpenProject.
OpenProject GmbH is registered in Berlin, Germany, and the sources consulted show no parent company outside the EU. In the cloud edition, data is stored on servers within the EU, or in Germany on request. Because the source code is open and on-premises installation is possible, European organisations can also run the software entirely under their own control and jurisdiction. The Community edition is free; the Enterprise editions add professional support and additional security features, both on-premises and in the cloud.