TreeLine

TreeLine just stores almost any kind of information. A tree structure makes it easy to keep things organized. And each node in the tree can contain several fields...

Free Open Source Windows Linux

Tkoutline

Tkoutline is a single pane, cross-platform outline editor written in Tcl/Tk . With this editor, information can be structured hierarchically in an outline and outlines...

Free Open Source Windows Linux

Fargo

Fargo is a simple idea outliner, notepad, todo list, blogging tool, project organizer. It's an HTML 5 application, written in JavaScript, runs in any compatible...

Free Web Dropbox

WinMilk

WinMilk is a Windows Phone client for the to-do list service 'Remember the Milk'. WinMilk lets you view your RTM tasks by date, list, smart list and tag, as well...

Free Open Source Windows Phone

Outspline

Extensible outliner and personal time organizer to manage todo lists, schedule tasks, remind events.

Free Open Source Linux Python wxPython

OutlineEdit

A beautifully crafted outliner for your Mac: It helps you keep your ideas structured and collected. Use OutlineEdit as an empty canvas to sketch information - for...

Commercial Mac OS X

Outlinely

Indispensable information organization tool for knowledge workers. Outlinely is the home for all your notes, thoughts, ideas and todos. It’s an elegant outliner and...

Commercial

Lifetick

Lifetick is an online Goal Setting application with a stylish, easy to use interface.

Freemium Web

Simple Outliner

Simple Outliner is an outline processor which can be operated easily. FEATURES: - Hierarchical outline. - Data can be exchanged with your PC as OPML or csv file...

Freemium iPhone iPad

buzz.opml

Buzz is a fast graphical editor for XML files with special support for OPML. Using the OPML convergence tools it will edit about any outline and many forms of indented...

Free Open Source Mac OS X Windows Linux

Foldout

The single-pane outliner that Windows users have been searching for for years, free! Extensive keyboard commands make outlining a fast-paced and smooth experience.

Free Windows .NET Framework

Trim Milk

Take your to-do lists with you wherever you go with this awesome, fast, reliable app and never forget the milk (or anything else) again. Trim Milk connects with the...

Free Windows Phone

CleverToDo

Clever Software released new version of CleverToDo - a popular ToDo application with unique features! Simplify your daily life, lighten your memory and stay productive...

Freemium Windows Phone

Milkify

Milkify is a desktop client for Remember The Milk, the awesome "to-do list" web application. It allows you to manage your tasks from the desktop, the same way...

Free Open Source Windows

MyMaelstrom

MyMaelstrom is a professional time management software designed to enable you to efficiently organize your projects. MyMaelstrom allows you to pause projects and...

Freemium Windows

ccToDo To-Do List

Too much to do? Too many lists for too many business and personal projects? Sort them once and for all online at ccToDo.com. ccToDo is the easy, cloud-based to-do list...

Free Personal Windows

dooity

dooity is a light and simple list manager. If you happen to have a high number of small lists then dooity is the right tool for you. Use dooity as your priority list...

Free Web

GoGetter

GoGetter is a task management system based on David Allen’s ever so popular Getting Things Done methodology. GoGetter will help you stay organized and stay on track of...

Commercial Windows Phone

Little Outliner

Little Outliner is an easy to learn, entry-level outliner that runs in a web browser. It's written in JavaScript and runs in HTML 5. You do not have to register or...

Free Web

SomTodo

Manage critical tasks, important check lists, and set key due dates securely and with ease using SomTodo.

Freemium Android iPhone Web