In the world of team and organizational communication, Slack is rising quickly as the most efficient application. Slack is a cross-platform business app with Channels that organize conversations in one place and several other features for effective communication. For more information on Slack, follow this official link.
Quick answer
The simplest way to install Slack on Ubuntu 24.04 is through App Center or Snap. Flatpak also works if you use Flathub, and the package from Slack’s website is useful when you want Slack’s direct desktop build.
How to Install Slack on Ubuntu 24.04
| Method | Source | Auto-updates | Notes |
|---|---|---|---|
| App Center | Snap store (via GUI) | Yes | Easiest, no terminal needed |
| Snap | Snap store | Yes (snap refresh) | One command |
| deb file | slack.com | No | Latest official build |
| Flatpak | Flathub | Yes (flatpak update) | Flatpak ecosystem |
Method 1: Install Slack on Ubuntu 24.04 Using the App Center
Slack is officially available in Ubuntu 24.04’s App Center. Open the App Center and search for Slack:

Select the Slack version to install. You can choose beta (may contain bugs) or stable. Click the Install button to proceed:

Note: You can also update Slack from Ubuntu 24.04’s App Center.
Method 2: Install Slack on Ubuntu 24.04 Using Snap
Snap bundles all dependencies into a single package. Install Slack with one command:
sudo snap install slack

Verify the installation:
slack -v

To launch Slack via Snap:
snap run slack
To update Slack installed via Snap:
sudo snap refresh slack
Method 3: Install Slack on Ubuntu 24.04 Using the .deb File
Slack provides an official .deb file for Debian-based distributions. Navigate to the official Slack website and download the .deb file:

Navigate to the Downloads folder, list its contents to confirm the filename, and install:
cd Downloads
ls
sudo apt install ./slack-desktop-4.36.140-amd64.deb

To launch Slack, use the Activities menu or run:
slack
To update Slack installed via the .deb file:
sudo apt upgrade slack-desktop
Method 4: Install Slack on Ubuntu 24.04 Using Flatpak
Flathub is a centralized source for Flatpak applications on Linux.
Step 1: Add the Flathub Repository
flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

sudo flatpak install flathub

Step 2: Install Slack
sudo flatpak install flathub com.slack.Slack

To update Slack installed via Flatpak:
sudo flatpak update --app com.slack.Slack
To run Slack installed via Flatpak:
flatpak run com.slack.Slack
How to Remove Slack on Ubuntu 24.04
| Install method | Remove command |
|---|---|
| App Center or Snap | sudo snap remove slack |
| deb file | sudo apt remove slack-desktop |
| Flatpak | sudo flatpak remove com.slack.Slack |
If you installed Slack using App Center or Snap:
sudo snap remove slack

If you installed Slack from the .deb file:
sudo apt remove slack-desktop
To remove Slack installed via Flatpak:
sudo flatpak remove flathub com.slack.Slack

Before signing in to Slack
After installing Slack, sign in with your workspace URL or email invitation. If notifications do not appear, check Ubuntu notification settings and Slack’s own desktop notification preferences.
If you switch between Snap, Flatpak, and deb packages, remove the old Slack package first. Keeping multiple Slack builds installed can create duplicate launchers and confusing notification behavior.