Ecwid is described as 'offers the performance and flexibility you need, with none of the hassles you don't' and is an website in the business & commerce category. There are more than 50 alternatives to Ecwid, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, Linux, Windows and Mac. The best alternative is WooCommerce, which is both free and Open Source. Other great sites and apps similar to Ecwid are PrestaShop, Thirty Bees, OpenCart and Adobe Commerce.
thirty bees is an open source e-commerce software that empowers merchants to focus less on their shop and more on their business. Having a fast, responsive, bug free e-commerce site is essential now, and thirty bees fills that void.
OpenCart is an open source PHP-based online shopping cart system. A robust e-commerce solution for Internet merchants with the ability to create their own online business and participate in e-commerce at a minimal cost.