Are you after reading the book Getting Things Done by David Allen looking for a computer program that you can use to your tasks to manage?
Getting Things GNOME is a free tool that is based on this method.
Getting Things GNOME is a free planning tool that you can use to work according to the Getting-Things-Done method by David Allen. After installation, you can directly add tasks, and then via the drag-and-drop a hierarchy in this application.
Getting Things GNOME is suitable for various Linux distributions and there is also a separate version developed for Windows.
Getting Things GNOME has the following characteristics:
Getting Things GNOME screenshots
You can free download Getting Things GNOME and safe install the latest trial or new full version for Windows 10 (x32, 64 bit) from the official site.