Magento One Step Checkout Extension- NO HACK, 100% AJAX, Increase Sales Up to 70% The native Magento checkout process includes a number of required fields which can make the payment process cumbersome, resulting in shopping cart abandonments. Therefore, all Magento sites need this One Step Checkout Magento extension as a simple checkout process but still remains payment methods as well as customers' information. If you are looking for a way to remove unnecessary steps of the default Magento Checkout Process then Cmsmart Magento One Step Checkout extension can be your best choice. The extension provides a good checkout experience for customers and greatly increase your sales.