In previous Ubuntu versions like 10.04, we used to have Evolution and its calendar/to-do options. Now we have Thunderbird and I am not sure whether I can have the same options on it.

Can anyone recommend me a good native application that offers calendar and to-do/organizing features? I am in a serious need of some organization here.


  • 1
    You can just install Evolution and remove Thunderbird if you want. Aug 6, 2012 at 17:29
  • Maybe Google Keep and Google Calendar? Though they're not native and they're sort of separate. (So I'm not bothering to post a full answer.)
    – wjandrea
    Jul 10, 2018 at 5:21

13 Answers 13


You can try using 'NitroTask'. It is a simple, nice, and very useful To do list management apps.

It has these features, I was looking for a long time:

  • Simple addition and deletion of task
  • Theme support, include 5 themes. (awesome feature).
  • Task synchronization with Dropbox and Ubuntu one (Cool!!)
  • Multi Language support
  • Sort by Title, Date or Priority. (very handy if you have a long list)
  • Custom default background image support. (Can be used for killing boredom)

To install it, use these command by opening a terminal using Ctrl + Alt + T shortcut.

sudo add-apt-repository ppa:cooperjona/nitrotasks
sudo apt-get update
sudo apt-get install nitrotasks

This is currently available for Ubuntu 11.10, 12.04 and 12.10

I think, you will enjoy this software.

Here is a screenshot below:

enter image description here

  • 1
    worked fine for me i am using lubuntu13.10
    – suhailvs
    Oct 13, 2014 at 1:16
  • Tasks vanishing from application after shutdown, don't know whats the reason but its frustrating. Oct 15, 2015 at 5:37
  • @tiGer, might because of some bug? Not using this now. I currently use Trello.
    – Anwar
    Oct 15, 2015 at 5:40
  • 3
    Throwing an error for Ubuntu 16.04. Err:25 ppa.launchpad.net/cooperjona/nitrotasks/ubuntu xenial Release 404 Not Found N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.
    – Richie
    Feb 23, 2018 at 5:41
  • @Richie That's because maybe the application isn't being maintained anymore for Xenial and higher releases. You can try the other suggestions or highest version debs from here ppa.launchpad.net/cooperjona/nitrotasks/ubuntu/pool/main/n/…
    – Anwar
    Feb 23, 2018 at 14:28

The command line

Let's not forget the commandline for managing tasks

sudo apt-get install task
$ task add some very important task
$ task 

enter image description here

You can also install vit if you want an alternative UI to this list. There are also some command line tools for managing your agenda.

  • how do i remove a task or mark as complete?
    – isnvi23h4
    Jan 3, 2018 at 20:09
  • task <filter> done where filter is the filter you use to select a task, see the man page
    – don.joey
    Jan 4, 2018 at 14:39
  • This is pretty neat if you can remember all the commands for it. Very useful no nonsense app. Feb 15, 2018 at 2:05
  • Note that it is sudo apt-get install taskwarrior now.
    – sotmot
    Mar 20, 2021 at 18:05
  • Does not work in Ubuntu 22.01. E: Unable to locate package task Mar 13 at 16:43

Since Wunderlist native linux client is not maintained anymore good alternative is Wunderlis Package app for Chrome/Chromium (it doesn't require Google Chrome to run to be able to use it).

  • The Wunderlist Packaged App also features voice input (you can dictate your to-dos) and has the ability to work offline.

  • It's simple and easy to use, supports timed reminders, recurring to-dos (although its recurring feature is definitely lacking), separate reminders from the due date of the task, notes and additional info associated with your to-dos, shared to-dos with others, multiple categories, and more. You can star important tasks (but that's as close to priority as you'll get), and customize the look of the app. It's broad platform support—and its webapp—mean you'll always have access to your to-dos. enter image description here

Another good alternative is Any.do Package app.

  • Breaking things down into "Today", "Tomorrow", "Upcoming", and "Someday" allows you to really make sense of just what needs to happen when.
  • Visual priority markings, and notes (which themselves act as sub task lists) makes the app even better. But the real cream of the crop aspects are the "Plan Your Day" daily review of the lists. enter image description here

Just install Evolution:

Or open a terminal (Ctrl+Alt+T) and type sudo apt-get install evolution.

  • 1
    Alright, I did install Evolution... However, I don't see the to-do thing on the calendar menu. Could you please point me to a way that I can do that? Thanks.
    – gustavokrm
    Aug 7, 2012 at 1:50

If you are reading this in 2017, I think it's worth checking out Everdo for Linux.


  • beautiful and pleasant to use, which is still rare on Linux
  • a true desktop app - doesn't require login/internet and stores data locally
  • low friction UX, optimized for GTD

enter image description here


  • not open source
  • not native application (electron based app)

Wunderlist is awesome! I used these instructions to install it and it was easy and painless. The desktop app syncs with Android, iOS and the web. Can't as for much more than that!


Getting Things GNOME is very simple and quite nice.

Or run this in the Terminal (Ctrl+Alt+T):

sudo apt-get update
sudo apt-get install gtg

The built-in To Do app is the best! I know it comes with Ubuntu 18.04, Ubuntu 19.10 and Ubuntu 20.04.

It's simple, organized and looks nice.

Possible to:

  • add Notes, Due Date and even Priority for each todo

  • schedule todos (which then appear in notification bar I think)

  • categorize by any group

  • see a list of all todos scheduled for today

  • sync to a mail service (like Gmail)

look how nice: screenshot here (a list of todos under digital-orientation list )


If you like Thunderbird, I would simply suggest that you give a try to Lightning, the calendar/task manager for Thunderbird. You will find it here: https://addons.mozilla.org/thunderbird/addon/lightning


Good to-do application should be always available and visible. Something like Rainlendar:

enter image description here

or Calendar indicator perhaps? It can synchronize with Google calendar.

enter image description here


Here's the simplest one:

Todo.txt demo image

It operates with just one text file that's controlled by you, and makes it easy to check off items on your to-do list without needing to open a full-bodied text editor or dive into the command line.

Todo.txt Indicator for Ubuntu Helps You Get Stuff Done


The best app multi-platform for managing events and tasks is Taskcoach.


If you want to use Thunderbird you can use the extensions Lightning (for events) with Todo.txt (tasks)


Remember The Milk
It is a great app that I recently discovered.
Remember The Milk has two versions, free and Pro.Some of the main features:

  • Organizing tasks in plain text lists

  • Divide bigger tasks into subtasks

  • Add tags, due dates, estimated time, links, and notes to tasks

  • Tag locations in Google Maps then use them to organize tasks

  • Sharing individual tasks or lists with contacts

  • Weekly schedule of tasks

  • Integration with various services such as Gmail, Evernote etc.

  • Desktop notifications

Installing Remember The Milk in Linux is available via the binaries provided. To download the .deb package, you have to log in first to their website

CREDITS: itsfoss

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