Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
OpenCart - A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.s
GloriaFood - Free Online Ordering System for Restaurants
Jumpseller - Start Your Online Store! Grow your business.
Square Terminal - All-in-one credit card machine for payments and receipts