oscommerce

OScommerce

 3.0.2
Free (Open Source)   
1

Complete online business shop manager.

cubecart

CubeCart

 6.1.8
Trial   
1

Set up a complete and real virtual shop.

zen cart

Zen Cart

 1.5.5e
Trial   

An online shop designer which is easy to use with complete operations.

opencart

OpenCart

 2.3.0.2
Trial   
2

Application for managing any type of online business.