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 will automatically expand to show a preview of the web page. Here's an example from the desktop app:

Tip: You can create hyperlinks in your messages to give links a cleaner look. To learn more, visit Format your messages.

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 not added to our allowlist. We're working to approve more services in 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: For some apps and integrations, link previews won't be disabled when the options above are unchecked.