E-commerce solutions are increasingly in demand and little by little Codeigniter is postulating itself as a solid framework that developers turn to to create their managers.
GoCart is a great electronic store manager that allows unlimited categories, a fairly advanced shipping management system and many cool features so that it becomes a good alternative to other more famous systems.
Best of all, it's Open Source, so we can make our own improvements to the source code, which is great.
Source | WebResourcesDepot
Link | GoCart