Slack for Mac

Slack's desktop app is the best way to use Slack on a Mac. Along with the features available in your browser, the app loads your conversations more quickly, gives you more control over notifications, and has better support for multiple workspaces.

Download and install Slack

There are two ways to download Slack for Mac: from the App Store, or the Slack downloads page.

App Store

Direct download

  1. Find Slack in the App Store.
  2. Click Install.
  3. To launch Slack, open a Finder window, select the Applications folder in the sidebar, then find and double-click the Slack icon.
  1. Visit the Slack downloads page at
  2. Click Download.
  3. Once the download is complete, open a Finder window and select your Downloads folder. Double click the Slack .zip file to reveal the Slack app icon, if it’s not already there. 
  4. Drag and drop the Slack app icon over Applications in the Finder sidebar.
  5. To launch Slack, just double-click the Slack icon in your Applications folder.

Our new Mac app runs faster than ever. 🚗💨  Make sure you have the latest version installed!

Tips and tricks

Sign in to multiple workspaces

You can use the app to sign in to multiple Slack workspaces. Click your workspace name in the top left to open the menu, then click Sign in to another workspace… to get started.

Switch workspaces easily

If you’re signed into multiple workspaces, it’s easy to navigate between them by clicking the workspace's icon in the sidebar on the left. You can even use keyboard shortcuts 1, 2, and so on to quickly switch between workspaces you’re signed in to. Just drag and drop the workspace icons to reorder them.

Add Slack to your dock

Once Slack’s running, you can choose to keep it in your dock. Just right-click the Slack icon, click Options and then click Keep in Dock.

Get dock icon notifications

You can set the dock icon to show a red circle when there’s unread activity in Slack. You can also set it to bounce when you receive notifications. Here's how to change these settings:

  1. From your desktop, click your workspace name in the top left.
  2. Choose Preferences.
  3. Click the Notifications tab.
  4. Under Sound & appearance, check the box next to Show a badge on Slack's icon to indicate new activity.



Having trouble? Here's what to try first:

  • Make sure you’re using the latest version of the app:
  • Refresh the app with  R.

If your app is using a lot of memory

  • Use the /collapse command in channels with lots of images and videos.
  • Sign out of any inessential workspaces.
  • If you have a lot of unread channels, marking them as read can help.

Using macOS 10.8 or earlier? New technologies like native notifications mean we can no longer support older Mac OSes. Going forward, the Slack desktop app is supported on macOS 10.9 and later. For info on upgrading your OS, see Apple's guide to upgrading.

Need help? Drop us a line with the details. We'll be happy to help you troubleshoot!

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