OpenCart is a user-friendly, comprehensible shopping cart which is free to own, upgrade, and use and an ideal eCommerce solution for business. In this software, there are many professionally written extensions that are available to customize the store, as per your needs and requirements. It is based on PHP and follows a core-extensions model. It is a reasonably light platform which requires add-ons to perform higher level functions. This software platform has a diverse community of developers who regularly adds to an already big pool of 13, 000 extensions.