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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.
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:
Note: It’s not possible to hyperlink words in a Slack message.
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.
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.
Manage link previews
Remove a link preview
Desktop If you'd like to remove a shared link's preview, hover over the preview in the desktop app and click the that appears on the left side.
Mobile On mobile apps, tap and hold the preview, then select Delete attachment.
Turn off link previews
If you’d prefer not to see previews for shared links, you can adjust your settings:
From your desktop, click your workspace name in the top left.
Select Preferences from the menu.
Select Messages & Media.
Under Inline Media & Links, check or uncheck these options: • Show text previews of linked websites • Show images and files from linked websites
Note: For some apps and integrations, link previews won't be disabled when the options above are unchecked.
Your workspace's safety and security comes first. As an added layer of protection, we’ll let you know if we’ve identified a potentially unsafe webpage or malicious link. If you come across one of these advisories, please proceed carefully!
Please note that Slack does not send any customer data to Google. For more information, visit Google’s Safe Browsing Advisory.
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