PrestaShop

PrestaShop is a freemium, open source e-commerce platform. The software is published under the Open Software License (OSL). It is written in the PHP programming language with support for the MySQL database management system. It has a software dependency on the Symfony PHP framework.
PrestaShop is currently used by 300,000 shops worldwide and is available in 60 different languages.
As an open-source organization, PrestaShop is faced with the challenge of generating revenues. By leveraging the size and international scope of its open-source community, the company established two main sources of revenue: PrestaShop Addons, a marketplace through which merchants purchase custom addons and themes for their stores Strategic partnerships with e-commerce industry leaders such as PayPal or Google.
PrestaShop has more than three hundred built-in features for managing product listing, payments, shipping, manufacturers and suppliers. PrestaShop uses a web template system that allows users to customize store themes and add new features through add-on modules. The PrestaShop Addons marketplace provides a platform for third-party developers to sell themes and modules to merchants.