Swell.is - Customizable, API-first ecommerce platform for innovative brands, startups, and agencies.
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.
Vendure - Open-source headless e-commerce framework for developers
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
Headless Commerce Resources - Curated collection of the best commerce resources
Magento - Magento is the eCommerce software and platform trusted by the world's leading brands. Grow your online business with Magento.