Sure, you can definitely buy an eSIM online!

Just download the free aloSIM app to browse eSIM data packages for 120+ countries.

When you find a package you'd like to purchase, select the blue "Buy" button and you'll be prompted to log into your aloSIM account or create a new aloSIM account.

Once you're logged into aloSIM, you can purchase your eSIM data package and install it right away.