It's easy to share web content like articles, pages, and other links 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.

Share links

To share a link in Slack, copy and paste the URL into the message field and send. Most links to websites and connected third-party apps (like Jira, Google Drive, and more) will automatically expand to show a preview. Here's an example from the desktop app:

Note: Previews for third-party app links can vary depending on the app. By default, you'll see detailed previews, but owners and admins can restrict this.

When previews don't display

Here are some reasons your link may 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.
• It links to audio or video hosted by a service we haven't added to our allowlist
  We're working to approve more services in the future.
• http:// was not included
  Try adding http:// and your link should expand.
• Your message contains more than five links
  If more than five links are included, they won't expand.

Tip: Your web administrator can also run your link through our URL debugging tool to confirm what preview metadata is being pulled. 

 

Remove a link preview 

Turn off link previews 

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

Note: Previews for some third-party app links won’t be disabled when the options above are unchecked.