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I installed Ubuntu 11.04 on one of my systems and I am using the Unity interface. Unity is working quite well so far but I really miss panel applets for net speed, cpu temp, and system monitor.

These applets are useful for viewing quick info. Unlike 10.10, there is no other way to get this info onto the panel or unity launcher. There are solutions like screenlets and conky but they don't feel appropriate for a clean desktop look.

If you know one then please list out any third party indicators with links so that they can be found.

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75 Answers 75

up vote 187 down vote accepted


Category: Other

StackApplet is a GNOME panel applet that monitors your activity on any StackExchange site.


stackapplet Install stackapplet in Ubuntu Software Center


As indicated in comments, the version of StackApplet in the Ubuntu Software Center is old and broken. To install it, use instead this ppa.

The first time the application is used, run

python /usr/share/stackapplet/stackapplet.py &

from a terminal.

For Ubuntu 14.04:

1.5.1 is available on universe repositories

So after enabling universe repositories, It can be installed by following command:

sudo apt-get update
sudo apt-get install stackapplet

But it has bug with adding account so upgrade to 1.5.2 as follows:

sudo add-apt-repository ppa:stackapplet-dev/stackapplet
sudo apt-get update
sudo apt-get install stackapplet
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Brightness indicator

Category: Screen brightness control

Brightness indicator allows you to control your laptop display brightness with indicator.


  • Clicking the icon shows you all the possible brightness values, to a maximum of 15 steps.
  • The current value is indicated with a dot.
  • Clicking a menu item sets the brightness to the desired value.
  • Scroll wheel event is enabled on the icon. Scrolling up means higher brightness, scrolling down lower.
  • Control screen brightness with custom keyboard shortcuts.

To install Brightness indicator in Ubuntu:

sudo add-apt-repository ppa:indicator-brightness/ppa
sudo apt-get update
sudo apt-get install indicator-brightness

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Indicator Netspeed Unity

Category: System Information

Shows the incoming and outgoing network traffic.

Significantly modified Netspeed Indicator.

enter image description here


  • Four display modes of traffic.
  • Shows how much has been downloaded and uploaded data for the current session.
  • Added "Settings" menu. It is possible to change the prefix (KiB/kB/kb), the icon theme, padding.
  • Three View mode: Normal, Compact, Minimum.
  • For convenience, added option in settings called "Tools" with which you can run terminal utility nethogs, for a more detailed analysis of the traffic source. To close nethogs press CTRL+C, otherwise it will run in the background.
  • Available multi-languages (you can add more or correct).

Source Code on GitHub

Installation in the terminal:

sudo apt-add-repository ppa:fixnix/netspeed
sudo apt-get update
sudo apt-get install indicator-netspeed-unity

After installation, you can run indicator. The launcher is located in the main menu under «Internet» under the name «Indicator netspeed-unity». Indicator when the installation is prescribed in startup, so after the restart run itself.

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Indicator Systemtray Unity

for Ubuntu 14.04 - 15.04

Category: System

enter image description here

Indicator, when clicked, shows the tray.

enter image description here

Also there is a display mode "separately from the indicator" - on top of the panel like a dock. In this mode, the position can be changed by scrolling the mouse over the indicator. To change the mode position: press the middle mouse button on the indicator.

Installation in the terminal:

sudo apt-add-repository ppa:fixnix/indicator-systemtray-unity
sudo apt-get update
sudo apt-get install indicator-systemtray-unity

You must then log out and again log in using your user.

Source Code on GitHub

To remove this package (with its configuration files!!!):

sudo apt-get --purge remove indicator-systemtray-unity
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Category: Other/Hakernews

HackerTray is a simple Hacker News Linux application that lets you view top HN stories in your System Tray.

enter image description here

Installation steps :

sudo pip install hackertray
sudo easy_install hackertray 
#Download Source and cd to it
sudo python setup.py install

After that, you can run hackertray from anywhere and it will run.


sudo apt-get install python-appindicator python-pip
sudo pip install hackertray

After installation open terminal and run indicator with this command "hackertray &" without quotes.

To make HackerTray indicator run by default hit Super key and type Startup Applications and launch it, in opened window click add and enter name and command:

Name: Hackertray indicator

Command: /usr/local/bin/hackertray

enter image description here

And press save, now log out and log in back. Done.

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Category: Accessibility

Keyboard modifiers state indicator for Ubuntu Unity desktop. Unity lacks such accessibility tools which most likely needed when sticky keys is activated.

Icon Mode

indicator-xkbmod icon mode

Label Mode

indicator-xkbmod label mode

Daily Build: To install add PPA

sudo add-apt-repository ppa:sneetsher/one
sudo apt-get update
sudo apt-get install indicator-xkbmod
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ClassicMenu Indicator

Category: Application starter

Provides a simple way to get a classic GNOME-style application menu for those who prefer this over the Unity dash menu. Like the classic GNOME menu, it includes Wine games and applications if you have those installed.

To install Classic Menu indicator in Ubuntu Trusty Tahr:

sudo add-apt-repository ppa:diesch/testing
sudo apt-get update
sudo apt-get install classicmenu-indicator

enter image description here

Get the most recent version from its web page (PPA available for Ubuntu 11.04, 11.10 and 12.04).

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Calendar Indicator

Calendar indicator is linked with Google Calendar, You can access your Google account calendar via this indicator and get notifications directly on your desktop.

To install Calendar indicator in Ubuntu:

sudo add-apt-repository ppa:atareao/atareao
sudo apt-get update
sudo apt-get install calendar-indicator

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Recent Notifications

Category: Other, System

Wiki article

The Recent Notifications applet displays the recent NotifyOSD notifications and allows you copy the text or a link from a notification. You can also click on a link to open it. There are options to blacklist applications within the applet to hide the associated notifications and set the time limit to show a message.

To install Recent Notifications indicator in Ubuntu:

sudo add-apt-repository ppa:jconti/recent-notifications
sudo apt-get update
sudo apt-get install indicator-notifications recent-notifications

screenshot recent notifications

After installing run Alt+F2 unity --replace. You will find a little mailbox in the panel.

(more info about changing the icon and uninstalling)

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Diodon indicator

Category: Clipboard Manager

Diodon is a lightweight clipboard manager for Linux written in Vala which "aims to be the best integrated clipboard manager for the Gnome/GTK+ desktop".

To install Diodon indicator in Ubuntu:

sudo add-apt-repository ppa:diodon-team/stable
sudo apt-get update
sudo apt-get install diodon

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Crypt-folder Indicator

With Crypt-Folder you can manage EncFS folders via this indicator, You can mount, unmount EncFS folders, create new EncFS folders, stores the password in Gnome Key-ring and mounts it at login, change existing EncFS folders password.

To install Cryptfolder indicator in Ubuntu:

sudo add-apt-repository ppa:atareao/atareao
sudo apt-get update
sudo apt-get install cryptfolder-indicator

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Tomboy Notes Indicator

Tomboy is a desktop note-taking application which is simple and easy to use. It lets you organise your notes intelligently by allowing you to easily link ideas together with Wiki style interconnects.

To install Tomboy Notes Indicator in Ubuntu:

sudo apt-get install tomboy

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Category: Power Management

Caffeine indicator allows user to temporary disable screensaver/sleep mode, Also there is option to add program in list to disable screensaver permanently for that program.

To install Caffeine indicator in Ubuntu:

sudo add-apt-repository ppa:caffeine-developers/caffeine-dev
sudo apt-get update
sudo apt-get install caffeine

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Watch out that caffeine currently has an issue with notify-osd, as all notifications other then critical will be suppressed with caffeine. For further reference see this bug on Launchpad. –  B_E Jul 9 '11 at 16:18

Synapse Indicator

Indicator Synapse, a search indicator made by Tom Beckmann for elementary OS. The indicator is similar to Mac OS Spotlight. It creates virtual index of files and items which are on the system. It is designed to access files and items quickly. It also has ability to search in online dictionary/knowledge engine (WolframAlpha) and web.

To install Synapse indicator in Ubuntu:

sudo add-apt-repository ppa:noobslab/indicators
sudo apt-get update
sudo apt-get install indicator-synapse

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Reminder Indicator

Reminder indicator is an indicator app specially designed for Ubuntu to set schedule reminders. These reminders can be configured to play a sound, show a notification, and/or run a command. Indicator Reminder has a powerful date/time selection feature that allows you to express recurring dates/times in plain English. For example: "every day", "every Monday", "every other", "every weekday", "every 30 minutes", and more!. They can also be set to repeat minutely or hourly.

To install Reminder indicator in Ubuntu Trusty Tahr(tested):

sudo add-apt-repository ppa:bhdouglass/indicator-remindor
sudo apt-get update
sudo apt-get install indicator-remindor

or install QT version of Reminder indicator via following commands in Ubuntu 14.04 Trusty:

sudo add-apt-repository ppa:bhdouglass/indicator-remindor
sudo apt-get update
sudo apt-get install remindor-qt
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Feed Indicator

Category: RSS Feeds

Panel-based RSS reader. Feed indicator can show RSS feed updates in the Panel via its indicator.

To add this indicator, download & install the deb

Or using a PPA:

sudo add-apt-repository ppa:noobslab/indicators
sudo apt-get update
sudo apt-get install feedindicator

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Netspeed Indicator

Category: System Information

A port of the old netspeed GNOME applet. Shows the current transfer rate directly on the panel.


Source Code on GitHub

Quick build instructions:

sudo apt-get install build-essential libgtop2-dev libgtk-3-dev libappindicator3-dev git-core
git clone git://github.com/mgedmin/indicator-netspeed.git
cd indicator-netspeed
sudo make install
indicator-netspeed &

This indicator was packaged as a deb by WebUpd8. You can download it from HERE.

Now also available in Webupd8 PPA:

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install indicator-netspeed
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Prime Indicator is a small, helpful Ubuntu AppIndicator for Nvidia Optimus users running Ubuntu 14.04 which allows users to quickly switch between Intel and Nvidia graphics cards.

enter image description here

sudo add-apt-repository ppa:nilarimogard/webupd8 sudo apt-get update sudo apt-get install prime-indicator

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Stock Quotes Indicator

Category: network, finance

indicator-stocks is a simple stock quotes indicator.

You can click on a menu item to see the stock chart in a browser.

indicator-stocks screenshot

sudo add-apt-repository ppa:ce3a/indicator-stocks
sudo apt-get update
sudo apt-get install indicator-stocks

source code

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Category: Academic

Qnotero is a quick access panel to your Zotero library, an open source reference manager.

sudo add-apt-repository ppa:smathot/cogscinl
sudo apt-get update
sudo apt-get install qnotero
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Category: Concentration / Get things done

This is a simple indicator that helps keep concentrated. You start it before a complicated problem and you have to keep concentrated for at least 10 minutes after it becomes green you can continue to work on your problem but you get thing done.

You can find more information about this concentration technique on the official website.

Often when you start to work, you continue and tomate give you feedback of the time it took to fix the task.


  1. Download the latest version
  2. Extract the files
  3. Run tomate.py

EDIT: If direct download does not work the first time, wait a little and try again. Instead you can also run:

git clone https://git.gitorious.org/~natim/tomate/natim-tomate.git

EDIT 2: You can also install Tomate via the PPA.

sudo add-apt-repository ppa:stvs/tomate
sudo apt-get update && sudo apt-get install -y tomate
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Google Reader Indicator

Category: RSS Feeds

UPDATE: Google Reader is now discontinued.

Google Reader Indicator displays the number of unread items in your Reader account along with article title and excerpt. Click on an article will open it in your default browser.

ppa:atareao/atareao and install package google-reader-indicator

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VirtualBox™ Indicator

Category: Virtualization

Provides a quick way to launch virtual machines.

For Precise onward (Python3 version):


sudo add-apt-repository ppa:thebernmeister/ppa
sudo apt-get update
sudo apt-get install indicator-virtual-box

For Natty, Maverick & Lucid (Vala version)


sudo add-apt-repository ppa:michael-astrapi/ppa
sudo apt-get update
sudo apt-get install indicator-virtualbox
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Category: Other

A Python 3 indicator which shows the current Star Trek™ stardate.


sudo add-apt-repository ppa:thebernmeister/ppa
sudo apt-get update
sudo apt-get install indicator-stardate
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PPA Download Statistics

Category: Other

A Python 3 indicator which shows the download counts for PPAs.


sudo add-apt-repository ppa:thebernmeister/ppa
sudo apt-get update
sudo apt-get install indicator-ppa-download-statistics
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Category: Other

A Python 3 indicator which shows the moon phase, moon/sun/planet/star/satellite ephemeris and other astronomical information.


sudo add-apt-repository ppa:thebernmeister/ppa
sudo apt-get update
sudo apt-get install indicator-lunar
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Category: Other

A Python 3 indicator which calls the fortune program and shows the result in the on-screen notification.


sudo add-apt-repository ppa:thebernmeister/ppa
sudo apt-get update
sudo apt-get install indicator-fortune
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Radio Tray

Category: Multimedia

A minimalistic radio player that runs in the notification area. One can also add many other radio stations by adding their URLs.

enter image description here

This package exists in the repositories. Radiotray, can be installed with this command:

sudo apt-get install radiotray
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Category: System Information

SysPeek is a system monitor indicator that displays CPU usage, memory usage, swap usage, disk usage and network traffic.


ppa:emptythevoid/syspeeknew and install package syspeek, with these commands:

sudo add-apt-repository ppa:emptythevoid/syspeeknew
sudo apt-get update
sudo apt-get install syspeek

Update: SysPeek doesn't work properly with recent Ubuntu versions (and it's not available for Ubuntu versions newer than Precise in the PPA above). Recently, Marco Trevisan ported the indicator to GTK3 and added various fixes - more info WebUpd8. You can download the DEB from HERE.

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Category: System Information


If you have a laptop or Netbook and want to be able to cool down that chip that's burning your hand and save some battery power this will be useful.

sudo apt-get install indicator-cpufreq

Install via the software center

If you don't use the indicator plugin (say, on Xfce), you can also use this utility in the systray (or notification area).

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indicator-cpufreq appears not to work with Ubuntu 12.04 –  Inkayacu May 5 '12 at 16:48
The PPA threw a 404 for me when I tried to add it, but it turns out is was already in the repos for 12.04, so I installed that and it appears to be working just fine. –  Nick DeMayo Jul 15 '12 at 14:15
The PPA is no longer needed, the indicator comes with Ubuntu 12.04. It also does work (but you need to start it manually, such as by typing indicator-cpufreq on a terminal) –  Scott Ritchie Jul 27 '12 at 0:33

protected by Avinash Raj May 7 '14 at 8:22

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