The best open source alternative to TeuxDeux is Org mode. If that doesn't suit you, our users have ranked more than 100 alternatives to TeuxDeux and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to TeuxDeux are sleek, WeekToDo, Taskwarrior and Task Coach.
Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.
sleek is an open-source (FOSS) todo manager based on the todo.txt syntax. It's available for Windows, MacOS and Linux.
WeekToDo is a free and Open Source minimalist weekly planner. With WeekToDo you can start improving your productivity by defining and managing your week and your tasks in an easy and intuitive way.
Taskwarrior is an ambitious project bringing sophisticated capabilities to a simple and elegant productivity tool. You'll find it has customizable reports, charts, GTD features, Lua extensions, device synching and more, all while our international team provides excellent...
Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists. It is designed for composite tasks, and also offers effort tracking, categories, notes and more.
Track your tasks and projects in a plain text file, todo.txt. A todo.txt is software and operating system agnostic; it's searchable, portable, lightweight and easily manipulated.
TakeNote was made by developers for developers - a simple, plain-text note-taking app for the web with Markdown support. What you see is what you paste. No WYSIWIG, no formatting pasted from the web, and no features you don't need or want.
Fokus is an open source application that combines a todo list and a calendar that can help you manage your school related work and events in one place. It's fast and beautiful yet simple design that can help you focus on what matters most.
Todour is an application for handling todo.txt files (as made famous by Gina Trapani of Lifehacker) on Windows, Mac and Linux. The format is especially practical for an approach similar to the one suggested in the book Getting Things Done by David Allen, often referred to as...
Tasque is a simple task management app (TODO list). The main window has the ability to complete a task, change the priority, change the name, and change the due date without additional property dialogs.
ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.
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