The Get a URL action (v8+) downloads from a specified web location.

The results can be:

• Ignored.
• Displayed in a floating window.
• Displayed briefly in a Notification.
• Displayed large across the screen.
• Typed in to the current selection.
• Pasted in to the current selection.
• Saved to a variable.
• Saved to the system or a Named Clipboard.
• Asynchronously ignored — the action runs while the macro continues on.

You can (v9.0+) include a parameter if desired.

If the output is going to a clipboard, the downloaded data can be an image.

• Open a URL action
• action:Open a File Folder or Application

• How to download an image from an URL and then copy to clipboard?