TaskUnifier is a task management software based on the well-known GTD (Getting things done) methodology. It will help you manage your tasks and therefore your time. TaskUnifier is free and open source.
Only the synchronization with third-party websites requires plugins which are independent from TaskUnifier's project.The plugins can be free or not.

Using TaskUnifier on Windows is very simple, you can either download the installer or the normal zip file. The installer will guide you and install everyting for you.
The normal zip file just needs to be unzipped and you can run the TaskUnifier.exe file to run the software.Concerning the other platforms, you need to download the "other" zip file. It contains some folders and a jar file named TaskUnifier.jar.
 

Features:

-Windows, Linux, Mac...

- Synchronized data

- Customize the appearance

- Internationalization

- Create repeating tasks

- Manage notes

- Subtasks, tags, folders...

Download TaskUnifier v2.0.1