Zim
Open Source
Zim is a graphical text editor used to maintain a collection of wiki pages.
Joplin
Open Source
Joplin is an open-source free note taking and to-do application.
wikidPad
Open Source
wikidPad different from other notepad applications is the ease with which you can cross-link your information.
CherryTree
Open Source
CherryTree is an hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.
Org-mode
Open Source
Org-mode is an Emacs Mode for Notes, Planning, and Authoring.
Nitro
Open Source
Nitro is free open source task management software.
Go For It
Open Source
Go For It is a simple and stylish productivity app, featuring a to-do list, merged with a timer that keeps your focus on the current task.
Simplenote
Open Source
Simplenote is an easy way to keep notes, lists, ideas and more.
Tomboy
Open Source
Tomboy is a desktop note-taking application for Linux, Unix, Windows, and Mac OS X.
Task Coach
Open Source
A simple and friendly task manager written in Python.
RedNotebook
Open Source
RedNotebook is an open source diary and journal software for Linux, Windows and Mac.
Todo.txt
Open Source
todo.txt is software and operating system agnostic; it's searchable, portable, lightweight and easily Todo management software.
Nozbe
Commercial
Nozbe is a to-do, task, project and time management application.
