Sellbeing - Simple e-commerce website builder.
OpenCart - A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.s
Maian Stripe - Free Stripe PHP Shopping Cart Script. Lightweight Stripe Shopping Cart. Self Hosted, Fast, Responsive, Easy to Use, Reliable. Ecommerce Simplified.
1ShoppingCart - 1ShoppingCart is an online store software to build a secure eCommerce storefront.
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
Paperform - A digital Swiss Army Knife for Small Businesses