Magento Open Source - Magento Open Source is a free eCommerce platform which provides small businesses with a flexible, digital commerce solution to successfully sell online.
WC Vendors Pro - WC Vendors Pro is a software solution that allows you to create your own marketplace for eCommerce business.
Salesforce Commerce Cloud - Salesforce Commerce Cloud is a on-demand e-commerce platform combines the functionality, flexibility and customization capabilities of an in-house application with the operational benefits of the on-demand model.
CS-cart - Secure and full-featured Online Shopping Cart Software with the complete set of powerful ecommerce options to create your own online store with minimum efforts involved.
Google Sites - Access Google Sites with a free Google account (for personal use) or G Suite account (for business use).
WCFM Marketplace - WCFM Marketplace is a plugin made for WordPress that provides features for a multi-vendor marketplace platform.