Yes, you can use a global gift card to purchase items online. These gift cards usually have a unique code that can be entered at the time of checkout on the website of the store where you wish to make a purchase. It is important to check the terms and conditions of the specific gift card to ensure it can be used online and to confirm any restrictions or limitations. This is a convenient option for those who prefer to shop online and for those who wish to send gifts or rewards to employees or customers who live in other countries.