OpenCart and Zen Cart are two popular online shopping carts that include a large number of market share in the e-commerce. Zen Cart is one of the oldest carts with hundreds of well-developed plugins. Zen Cart supports non-programmers to adjust some settings in the code if needed. Beside Zen Cart, OpenCart is quite easy to set up and control. OpenCart provides the ability to edit CSS, change the layout quickly. It provides hundreds of professional templates and vast number of plugins.