You sure can! Your Grasshopper number can double as a fax line, so you can receive faxes without an actual fax machine.
Note: You can only receive faxes with Grasshopper, you cannot send outbound faxes.
To set up your Virtual Fax, go to Settings, then click on the Features tab, and then click on Turn "Virtual Fax" on:
Incoming faxes are automatically converted to a digital image that you can access online, have forwarded to a fax machine anywhere, or even have delivered via email as a PDF.
Click Edit to add email address where faxes should be emailed to: