moltin - Inventory, cart, checkout, payments & more through a simple API
ProppyJS - Functional props composition for UI components (React & Vue)
Commerce.js - Rapidly create eCommerce experiences on web and mobile
Appbase.io - Search stack for building modern apps
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.
Deja vu - A mind-blowing interactive piece to promote an album. Wow.