nopCommerce is an open source e-commerce solution that is ASP.NET 3.5 based with a MS SQL 2005 (or higher) backend database. Designed as an easy-to-use, search engne friendly shopping cart solution, it is uniquely suited for merchants that have outgrown existing systems. It has everything you need to get started in selling physical and digital goods over the internet.
nopCommerce is developed to take full advantage of the latest technologies available. With its pluggable architecture, additional functionality and presentation elements can be dynamically added to the application at runtime.
A lot of effort went into ensuring that nopCommerce is optimized for search engines. From search friendly URLs to properly structured content and products, you will find that nopCommerce was built to help your customers locate your content with ease.
nopCommerce offers unprecedented flexibility and control. Since it is open-source, nopCommerce’s source code is available free.