Shopio is described as 'next generation e-Commerce platform that enables small to medium sized businesses (SMBs) to promote and sell their products online at affordable prices without any technical knowledge or software installation' and is an website in the Business & Commerce category. There are more than 100 alternatives to Shopio, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, Windows, Linux and SaaS. The best alternative is PrestaShop, which is both free and Open Source. Other great sites and apps similar to Shopio are WooCommerce (Free, Open Source), OpenCart (Free, Open Source), Shopify (Paid) and Thirty Bees (Free, Open Source).
THELIA, open source e-commerce Thelia is a tool for creating e-commerce websites and for online content management, published under General Public License. Thelia differs from competitor applications due to the ease with which it can be used and customised.
Payhip is an e-commerce platform that enables anyone to sell ebooks directly to their fans and followers using just a link. You can simply upload your product, enter the price and start selling on Twitter, Facebook or your own website.
CubeCart is a hugely popular and very established open source eCommerce solution. A fantastic shopping cart which is easy to install, with a committed group of forum members eager to answer any CubeCart question.