Share links and set preview preferences

It's easy to share web content like articles, pages and tweets in Slack. When you share a link, you'll see a preview of the content just below your message. If you don't want to see link previews, you can turn them off altogether.

Share links

To share a link in Slack, just copy and paste the URL into the message field and send. Most links will automatically expand to show a preview of the web page. Here's an example from the desktop app:

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Note: It’s not possible to hyperlink words in a Slack message.

When previews don’t display

Here are some reasons why your link might not expand to show a preview:

  • The link contains no preview data.
    If the web page doesn't include the necessary embedded data, the preview won't expand.
  • You linked to a private page or file.
    For example, you won't see a preview of password-protected YouTube or Vimeo videos.
  • It was recently posted by another member of your workspace.
    No attachment will expand if that link was shared in the same conversation within the past hour.
  • You haven’t added the Twitter app yet.
    If Twitter URLs don’t expand to show the full tweet, add the Twitter app to your workspace.
  • The link was to video or audio hosted by a service we've yet to whitelist.
    We're working to whitelist more services in future.
  • http:// was not included.
    Try adding http:// and your link should expand.
  • Your message contains more than four links. 
    If your message has five or more links included, they won’t expand.

 

Remove a link preview 

  1. From your desktop, hover over the link preview.
  2. Click the  that appears on the left side.

Note: it's not currently possible to remove a link preview from the mobile app.


Turn off link previews 

If you’d prefer not to see previews for shared links, you can adjust your settings:

  1. From your desktop, click your workspace name in the top left.
  2. Select Preferences from the menu.
  3. Select Messages & media.
  4. Under In-line media & links, untick these options: 
    Show images and files from linked websites
     Show text previews of linked websites

Note: for some apps and integrations, link previews won't be disabled when the options above are unticked.