DayTasks
Minimal todo.txt-compatible app for Ubuntu.
19 Alternatives To DayTasks
Calcurse
Calcurse is a calendar and scheduling application for the command line.
Getting Things GNOME
Getting Things Gnome! is an organizer for the GNOME desktop environment.
Gnome To Do
GNOME To Do is a simplistic personal task manager designed to perfectly fit the GNOME desktop.
Google Tasks
to-do list app that integrates with Gmail and Google Calendar
Markor
Text editor - Notes, ToDo & Bookmarks. Markdown and todo.txt support.
Maya
Maya in Launchpad
OpenNote
An open web-based alternative to Microsoft OneNote and Evernote.
Org mode
Org: an Emacs Mode for Notes, Planning, and Authoring
QOwnNotes
QOwnNotes is a free plain-text notepad with markdown support for Linux, Mac OS X and Windows, that works together with ownCloud Notes.
Remember The Milk
Remember The Milk is a task and time management application for mobile devices.
Taskwarrior
Taskwarrior is an ambitious project bringing sophisticated capabilities to a simple and elegant…
ToDoList
Windows desktop application to stay on top of your daily tasks.
Todo
Todo is a to-do and task list app.
Todoist
Todoist is a to-do list that helps you get organized, at work and in life.
Tomboy
Apps/Tomboy - GNOME Wiki!
Trello
Infinitely flexible. Incredibly easy to use. Great mobile apps. It’s free. Trello keeps track of everything, from the big picture to the minute details.
Wekan
The open-source Trello-like kanban (built with Meteor). Wekan is an completely Open Source and Free software collaborative kanban board application with MIT license.
Whether you’re maintaining a personal todo list, planning your holidays with some friends, or working in a team on your next revolutionary idea, Kanban boards are an unbeatable tool to keep your things organized.