Minimum requirements for using Slack

If you’re curious about the technical requirements needed to run Slack, read on to learn which operating systems and browsers we support.


Desktop apps

Operating system Requirements
Mac OS X OS X 10.10 or above
Windows Windows 7 or above
Linux Fedora 28 or above
Ubuntu LTS releases 16.04 or above
Red Hat Enterprise Linux 7.0 or above

Note: Slack supports Transport Layer Security (TLS) version 1.2. 


Trouble updating desktop apps

If you’re having trouble updating to the latest version of the desktop app, follow the steps below to uninstall your current app and install the latest version.

Mac

Windows

Linux

There are two possible versions of the Slack desktop app for Mac. If you’re not sure which version of the Slack app for Mac you’re using, open the app and click Slack, then About Slack from your computer’s top menu. You’ll see the App Store mentioned in the pop-up window if that’s the version that you’re on.

Direct download version

  1. Quit Slack.
  2. Open Finder on your computer.
  3. In the Finder search bar, type .app. Using the drop-down menus, select Kind from the first menu, then Application from the second.finder_search_bar.png
  4. Enter Slack into the search bar to filter your search results. Then toggle your search results to On this Mac instead of a specific folder.
  5. Move any matching search results to the bin.
  6. From Finder, press ShiftG on your keyboard and enter ~/Library/Application Support/Slack in the search bar.
  7. Delete all files and folders shown by moving them to the bin, then click Empty.
  8. Visit https://slack.com/downloads/mac to download the desktop app.

Mac App Store version

  1. Quit Slack.
  2. Open Finder on your computer.
  3. In the Finder search bar, type .app. Using the drop-down menus, select Kind from the first menu, then Application from the second.finder_search_bar.png
  4. Enter Slack into the search bar to further filter your search results. Then toggle your search results to On this Mac instead of a specific folder.
  5. Move any search results to the bin.
  6. From Finder, press ShiftG on your keyboard and enter ~/Library/Containers/com.tinyspeck.slackmacgap/Data/Library/Application Support/Slack in the search bar.
  7. Delete all files and folders shown by moving them to the bin, then click Empty.
  8. Visit https://slack.com/downloads/mac to download the desktop app.
There are two possible versions of the Slack desktop app for Windows. If you’re not sure which version of the Slack app for Windows you’re using, open the app, and click Slack, then About Slack from your computer’s top menu. You’ll see the Microsoft Store mentioned in the pop-up window if that’s the version that you’re using.

Direct download version

  1. Quit Slack. Make sure that there are no Slack.exe or Update.exe processes running in Task Manager.
  2. On Windows 7 or 8, click Control Panel, then Uninstall a Program, and double-click on Slack. On Windows 10, open the Start Menu and click on Settings, then the Apps & features tab.
  3. Find Slack in the list that appears and click the option to Uninstall.
  4. Open the Run dialogue by pressing Windows keyR.
  5. Type %AppData% and press Enter. Delete the Slack folder that launches.
  6. Return to the Run dialogue, and enter %LocalAppData% to also delete that Slack folder.
  7. Visit https://slack.com/downloads/windows to download the app.

Microsoft Store version

  1. Quit Slack. Make sure that there are no Slack.exe or Update.exe processes running in Task Manager.
  2. Open the Start Menu and click on Settings, then the Apps & features tab.
  3. Find Slack in the list that appears and click the option to Uninstall.
  4. Open the Run dialogue by pressing Windows keyR.
  5. Enter the following path: C:\Users\USERNAME\AppData\Local\Packages\91750D7E.Slack_8she8kybcnzg4\LocalCache\Roaming
  6. Delete the Slack folder that launches from that view.
  7. Visit https://www.microsoft.com/store/p/slack/9wzdncrdk3wp to download the app.

Ubuntu DDL

  1. sudo apt remove slack-desktop
  2. rm -rf ~/.config/Slack
  3. rm /etc/apt/sources.list.d/slack.list /etc/default/slack

Fedora DDL

  1. sudo dnf remove slack
  2. rm -rf ~/.config/Slack
  3. rm /etc/yum.repos.d/slack.repo /etc/default/slack

RHEL DDL

  1. sudo yum remove slack
  2. rm -rf ~/.config/Slack
  3. rm /etc/yum.repos.d/slack.repo /etc/default/slack

Snap (all distros supported by Snapcraft)

  1. sudo snap remove slack
  2. rm -rf ~/.config/Slack


Mobile apps

Operating system Requirements
iOS iOS 12.2 or above
Android Android 6.0 or above


Web browsers

Browser

Requirements

Chrome

Version 66 or above

Firefox

Version 60 or above

Safari

Version 10.1 or above

Microsoft Edge

Version 41 or above

Note: Google Chrome is the only browser that supports Slack Calls.

Unsupported browsers and operating systems

To deliver the best possible Slack experience, we keep our list of supported browsers and operating systems short. We don’t fix bugs or issues for unsupported browsers, so we do our best to block them from accessing Slack.