Joomla-VirtueMart supports an unlimited number of products and categories, with products able to be assigned to multiple categories. It also permits the sale of downloadable products, and offers a catalog mode where the shopping cart features are turned off. VirtueMart supports multiple prices for a single product, based around shopper groups or a quantity range, and permits the use of a variety of different payment gateways.

osCommerce is an online shop e-commerce solution that offers a wide range of out-of-the-box features that allows online stores to be setup fairly quickly with ease, and is available for free as an Open Source based solution released under the GNU General Public License. osCommerce was started in March 2000 and has since matured to a solution that is currently powering 12,511 registered live shops around the world.

PrestaShop is a professional e-Commerce shopping cart software that you can download and use for free. The big advantage of open-source software: you're never 'locked' to expensive commercial software. The software makes extensive use of AJAX in the admin panel, while module blocks can be easily added to the store to provide extra functionality; these are normally provided free of charge by independent developers.

Magento is the eCommerce software platform for growth that promises to revolutionize the industry. Its modular architecture and unprecedented flexibility means your business is no longer constrained by your eCommerce platform. Magento is total control. Magento was built using the Zend Framework. It uses the Entity-attribute-value (EAV) database model to store data.

OpenCart is a turn-key ready "out of the box" shopping cart solution. You simply install, select your template, add products and your ready to start accepting orders. It has order management and multiple payment gateways already built in and we provide lifetime free support and free software updates. OpenCart is designed feature rich, easy to use, search engine friendly and with a visually appealing interface.

Zen Cart truly is the art of e-commerce; free, user-friendly, open source shopping cart software. The ecommerce web site design program is being developed by a group of like-minded shop owners, programmers, designers, and consultants that think ecommerce web design could be and should be done differently.There are hundreds of shopping cart programs available, but none come close to offering the level of options, features and support available with Zen Cart.

X-Cart is an e-commerce shopping cart software program created by the Qualiteam company. Created in 2001, this software helps internet merchants with their interactive online shopping cart needs. There are different versions of the software program, as well as extra modules that can be added on, which helps online vendors choose what is best for their specific needs.

Ubercart is an e-commerce suite developed for Drupal. It has been designed with the end user in mind, focusing on usability in three key areas: store configuration, product and catalog creation, and order administration. On the front end, all major systems are configurable and integrate with the standard Drupal systems (node, taxonomy, user, etc.). On the back end, the settings pages and order administration pages have been designed with ease of use in mind, and we are constantly working to lower the barrier to entry for new Ubercart users.

Create & manage an online store with an ecommerce shopping cart from Yahoo! Merchant Solutions.Yahoo! Merchant Solutions has following key features a professional-looking store with flexible design options,Organize your products with easy-to-use management tools,Manage all your online order processing with one simple tool,Accept credit cards, checks, money orders, PayPal and more!,Protect your business and your customers with multiple security layers

Payment Gateway Integration

A payment gateway is an application that allows you to process transactions over the Internet. If you want to sell products and services from a Web site, you need a payment gateway to help facilitate communication between you, your customer and the financial institutions you both belong to. The payment gateway acts as a liaison between your business Web site and the broader Internet.

Shipping Calculator API

The shipping calculator will allow potential customers to enter a zip code and what type of location the delivery will be at. Once this information is entered and the customer will get full shipping rate details for that shipment.