osCommerce - an Open Source based online shop e-commerce solution that is available for free under the GNU General Public License. It features a rich set of out-of-the-box online shopping cart functionality that allows store owners to setup, run, and maintain their online stores with minimum effort and with no costs, fees, or limitations involved.

osCommerce has attracted the largest e-commerce community that consists of over 167,400 store owners and developers worldwide with add-ons being contributed on a daily basis. To date there are over 4,500 add-ons available that have been created by the community to extend the features of an osCommerce Online Merchant online store.

With over 8 years of operation, osCommerce has built a showcase of over 12,700 online shops, and powers many thousands of more online shops worldwide.