How to install SLACK on Debian 11 Bullseye Linux


Here are the steps to install Slack on Debian 11 Bullseye or 10 Buster Linux using the command line terminal.

Slack is a popular online instant messaging service app that stands for “Searchable log of all conversations and acquaintances”, yes, in short, “Slack”. It was developed by the American company “Slack Technologies” mainly used to manage communication processes within work groups and project teams.

Slack can also be seen as an alternative to other team messaging and project management tools like Microsoft Teams, Stackfield, Circuit, or Rocket. Its business model corresponds to the well-known “freemium” model. This means that it offers several plans, including the free plan which gives access to 10,000 of the most recent messages from your team; 1: 1 voice and video calls between teammates and 10 integrations with other apps like Google Drive, Office 365 and more.

While to get more features from small teams to large companies to improve productivity, users have to go for premium plans.

Steps to install Slack on Debian 11 or 10

The steps are given below for installing Slack on Debian Linux will also work for Ubuntu (18.04 | 19.04 | 20.04 | 21.04), Linux Mint, Kali Linux, POP! OS and more …

Download Slack for 64-bit Debian

On your Debian 11 or 10 Linux, open the browser and visit the Slack official website download page. There you will see the Linux package to download, click on the Debian App one.

Skip to downloads

Since we are using a browser to download the file, anything we download using it by default goes to the “Downloads” directory on the system. Therefore, go to this.

cd Downloads

After that, you can check whether the downloaded file is there or not.


Use APT to install the Slack app on Debian 11 or 10

So we have the file, now using the APT package manager or the DPKG command we can easily install the Slack app on our Debian and its Linux based distributions.

sudo apt install ./slack*amd64.deb

If you get an error on Debian 11:

The following packages have unmet dependencies:
slack-desktop : Depends: libappindicator3-1 but it is not installable

Then install two additional packages given below:

1. Download and install – libindicator3-7


If the above link doesn’t work, get the new one from its package page.

Install it:

sudo apt install ./libindicator3-7_*_amd64.deb

2. Download and install – libappindicator3-1


You can opt for other mirrors if the one given in the above command does not work, from the package page.

Install it:

sudo apt install ./libappindicator3-1_*_amd64.deb

Now run the Slack install command again and this time it will be on your Debian 11 system.

sudo apt install ./slack*amd64.deb

Run Slack

Go to all apps and search for this app. When its icon appears, click on it to run the application.

2nd method:

Install Slack using SNAP

If you don’t want to follow all of the above steps, use SNAP:

sudo apt update
sudo apt install snapd
sudo snap install core

Restart the system and install it:

sudo snap install slack --classic

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Steven L. Nielsen

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