osCommerce is a free and open-source e-commerce platform that enables users to set up and manage an online store. It was first released in 2000 and has since grown to become one of the most popular e-commerce platforms on the internet. osCommerce provides a wide range of features, including a user-friendly interface, customizable templates, multiple payment and shipping options, and a powerful product management system. It also supports multiple languages and currencies, making it an ideal choice for businesses that sell internationally. One of the key benefits of osCommerce is its active community of users and developers who create add-ons, extensions, and plugins to extend the platform's functionality. Users can add and modify features using these plugins and modules, and can also customize the platform's code to meet their specific needs. Overall, osCommerce is a robust and flexible e-commerce platform that is suitable for businesses of all sizes. Its range of features, customization options, and support for multiple languages and currencies make it a popular choice for businesses looking to sell online.