osCommerce

osCommerce is an open-source shopping cart system that you can use to create online store. It is one of the oldest and most comprehensive open-source shopping cart on the market today. The software is written in PHP and is self-hosted, allowing you to have complete access to, and total control of your online store and data. osCommerce is a 20+ years old, community-driven project and includes over 9,000 add-ons that can be used to customize and add further functionality to your online store.

osCommerce Information