Previewing Whimsical files in Slack

With the Whimsical integration for Slack, you can unfurl your board links and see rich previews of files shared in your team’s Slack channels. This makes it easier to convey key information right in Slack. 

Installing the app

To add the Whimsical integration for Slack and see a preview of your Whimsical content in Slack just by sharing a link, you can:

1. Go to “Manage Integrations”, which you'll find under your Whimsical workspace name in the top left, then click “Install” under the app for Slack:

Then allow Whimsical permission to connect with your Slack workspace:

Note: You must have permission (in Slack) to install new apps. If you don’t, check with an admin in your Slack workspace.

Important: Any files viewable by members of your Whimsical workspace will be previewed when shared in Slack. This means some of the content may be visible to people who are not in your Whimsical workspace, if they are in your Slack workspace.

How does it work?

With the app installed, when you paste a link to a Whimsical file, you’ll see an image preview of the file’s contents:

Tip: Click the image or the link itself to open the file in Whimsical.

Troubleshooting

If you share a Whimsical link in Slack and don’t see a preview, it may be an unsupported type of link, a private file, or a file from an unconnected workspace. 

Currently, previews are not supported for links to project cards or comments.

If you or someone in your workspace has previously blocked previews for whimsical.com in Slack, you will need to remove the block. Slack admins are able to do this from Slack Settings > Attachments:

Uninstalling the app

To remove the Whimsical integration for Slack from your Slack workspace, open it in the Slack App Directory. Then, scroll down on the configuration tab, and click "Remove App":