An open source web application for e-commerce. This application is written in PHP using the Symfony framework, Twig is used to write templates, MySQL is used to store data. This engine is designed for small and medium-sized businesses and has more than 310 standard functions for quickly creating a functional store. In 2010 and 2011, PrestaShop was recognized as the best web application for online stores, winning the Best Open-source Business Applicatio award