BigCommerce: Like Shopify, BigCommerce is a cloud-based platform with strong online ordering features and payment gateway integration.

Magento: Designed for larger businesses, Magento is a more stable e-commerce platform. It provides scalability and a wide range of customization options.

Square Online: This simple and user-friendly online ordering platform is ideal for small businesses and restaurants. It works with Square’s payment processing integration.

Wix: Wix is a website builder that is appropriate for small businesses seeking an easy-to-use online purchasing system because it provides e-commerce functionality.

Squarespace: Known for its stunning website designs, Squarespace is a good option for online purchasing, especially for small companies and restaurants.

OpenCart: With a large selection of extensions, OpenCart is an open-source e-commerce platform.