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

Outspline

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

Free Open Source Linux Python wxPython

CarbonFin Outliner

Great application for creating lists and outlines that need to be accessible anywhere, good for reoccurring shopping lists or check lists / notes on how to do a...

Commercial iPhone iPad Web

TodoToday

TodoToday is a light weight todo list task management application that actively synchronizes updates with various online todo list and project management services. ...

Freemium Android

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

LifeTopix

Organize work and life in this complete calendar and planner app. 100,000+ users already do! It's simple for daily agenda, tasks, appointments, reminders, lists...

Commercial 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

Agenda At Once Free PIM

All-in-one organizer - integrates all your PIM needs in the well-organized interface: to-do list management, time planning, contacts, reminders, recurring options and...

Free Windows

Qiknr

Qiknr is a simple objective to-do list. You don't need to register to get things done or some fancy email, calendar, multi-task agenda that takes so much time just...

Free Web

Black Hole Organizer

With Black Hole Organizer you can store all of your notes and documents in one convenient place AND you can get them back out again. With Black Hole Organizers text...

Commercial Windows

Outliner

Organize shopping lists, tasks, todo-lists, ideas and all kinds of memos. Or use it as a project management tool. Do it in a tree-structure with collapsable nodes. ...

Freemium Android

Vimflowy

vimflowy is an innovative, open-source notebook and list making app that combines the infinite list and note taking powers of workflowy with a http://alternativein .

Free Open Source Web Self-Hosted

B-liner

B-liners simple and intuitive outlining environment enhances your ability to think, organize, analyze, manage, communicate and document. Hierarchical spreadsheets let...

Commercial 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

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

YouTasks

Simple web-based to-dos and tasks manager with collaboration. Fast insert, star important tasks, and group the tasks into lists. Powerful filters. Create any number of...

Freemium Web