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.
MarketplaceKit - MarketplaceKit is a platform for building different types of online marketplaces.
Magento - Magento is the eCommerce software and platform trusted by the world's leading brands. Grow your online business with Magento.
Cocorico - Cocorico is a state-of-the art Open Source solution to create an Airbnb or Blablacar for anything.
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
Sharetribe - Build your online marketplace business. You don't need a developer.