An open-source, self-hosted memo hub with knowledge management
A premier mind-mapping software written in Java
Free flexible open source todo manager featuring hierarchical tasks
The Freeplane add-on that syncs a GTD mind map with a todo.txt file
Create sticky notes, to-do list, journals & reminders all in one app
Unofficial Evernote client for Linux desktop
A simple issue tracker system.
The most popular mindmapping and brainstorming software
Selenio helps you manage your reminders in an extremely quick way
Simple lightweight crossplatform application for notes managment
Lightweight task manager
Create a task list while making minutes with OpenOffice or LibreOffice