Top Alternatives to Todo.txt

Notezilla is a sticky notes app for Windows.

Remember the Milk (RTM) is an application service provider for a Web-based task- and time-management.

Todoist: To-Do list and Task Manager.

Google Tasks is the task list functionality provided by Google.

Toodledo is a popular and powerful online productivity tool. Manage your to-do list, take notes, track habits, and organize ideas into outlines and lists.

Things is a delightful and easy to use task manager.

ToDoList is a jack-of-all-trades organizer software that goes far beyond managing shopping lists. The tool allows to create short and precise task list.

A simple and friendly task manager written in Python.

Yodiz is a simple but comprehensive agile tool with visual boards for Sprints, Releases, Backlog, Epics and Issue management.

Doit.im is a Cross-platform Best Online GTD Service, which can sync with Phones.

MyLifeOrganized (MLO) is the most flexible and powerful task management software for getting your to-dos finally done.

Quire is a collaborative task management tool for breaking down goals in hierarchical lists.

Wekan is an open-source kanban board which allows a card-based task and to-do management, similar to tools like WorkFlowy or Trello.

Notational Velocity is a software for Mac OS X used for notetaking. It allows users to create notes using solely a computer keyboard and search them using incremental find.

TickTickis a cross-platform to-do list app & task manager helps you to get all things done and make life well organized.

Nirvana is a cloud-based task manager that isn’t just about doing more.

Ora is a real-time all-in-one workspace for teams.

Org-mode is an Emacs Mode for Notes, Planning, and Authoring.

EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries, etc.

2Do lets you take a completely different approach to managing your tasks. With its extremely simple-to-use interface.

Taskwarrior is an open-source, cross platform time and task management tool. It has a command-line interface rather than a graphical user interface.

Markor is a free and opensource text editor for Android.

UV Outliner is a single pane outliner with multicolumn support.

Tasque is an open source task management application.

Conqu is a simple yet powerful task management tool designed to help you conquer your inbox and get things done.

Nozbe is a to-do, task, project and time management application.

Nach brings a powerful goal setting experience to all platforms, with an integrated suite of tools containing everything you need to get organised and begin achieving more.

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.

Clear is a tasks, reminders and To-Do lists app.

Tasks is a task management app.

Mirakel is an easy to use and lightweight To-Do App for your Android Phone or Tablet.

GTasks is a simple and efficient todo or task management app with Google synchronization.

FCorp My Calendar is a free software to manage a diary, notes, schedules, birthdays, etc.