Front-Commerce - Front-Commerce is the headless front-end that empowers merchants and developers to create customer experiences that convert, faster than ever before.
OpenCart - A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.s
3dcart - We provide ecommerce software, web design and inbound marketing services to help online businesses be more successful.
Thirty Bees - Open e-commerce platform designed to work out of the box.
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.
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.