Yes, we offer a free online design tool. After you save your quote, you will be able to access the Project Center. In the Artwork section, you will see an option to use the Online Designer for your packaging format. It’s not possible to use the Online designer for Digipaks or Wallets because of their complexity. There is a full section of helpful videos and tips there to help you out.
You can see more info on how to access the online designer here.