GNOME To Do is a simplistic personal task manager designed to perfectly fit the GNOME desktop. Designed from ground up to seamlessly integrate with the GNOME desktop environment, To Do enables you to be as productive as you want.

neutriNote is an all-in-one preservation of written thoughts, be those text, math (LaTeX), rich markdown, drawings, etc., in fully searchable plain text (universal UTF-8).

Todo app that uses cognitive psychology to trick brain into completing tasks and feeling good about it

Kalendar is a Kirigami-based calendar application that uses Akonadi. It lets you add, edit and delete events from local and remote accounts of your choice, while keeping changes syncronised across your Plasma desktop or phone.

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. Go For It uses Todo.txt as a backend and the Pomodoro technique for the timer.

Calcurse is a calendar and scheduling application for the command line. It helps keep track of events, appointments and everyday tasks. A configurable notification system reminds user of upcoming deadlines, the curses based interface can be customized to suit user needs and a...

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.

Command line todo list with git sync.

Tinotes is an open platform to store and organize your ideas, memories and plans. Use components you know from other apps — notes, lists, multimedia, editors etc… Combine them freely and compose a unique desktop to match your current requirements.

Put your most important task or goal in the menu bar. Its presence there will help remind you without being annoying.

GeeTeeDee is a fancy, lightweight, easy to use and effective task management software.

A GTK app to remind you of active tasks every day.