Experify - Connecting you to owners of products for honest opinions.
OpenCart - A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.s
Pattern by Etsy - Turn your Etsy shop into your own website
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
Whatnot - The safest place to buy & sell collectibles
PrestaShop - Create your online store with PrestaShop's free shopping cart software. Build an ecommerce website for free and start selling online with hundreds of powerful features.