Best open source/free shopping carts

After looking into many open source shopping carts, we found that best among those are following -

1.       OpenCart

2.       Joomla  with Virtuemart

These tools have all the features like -

·         Unlimited Categories

·         Unlimited Products

·         Unlimited Manufacturers

·         Templatable

·         Multi-Language

·         Multi-Currency

·         Product Reviews

·         Product Ratings

·         Multiple Tax Rates

·         Unlimited Information Pages

·         Shipping Weight Calculation

·         Discount Coupon System

·         Search Engine Optimization (SEO)

·         Backup & Restore Tools

·         Printable Invoices

·         Sales Reports

·         Payment modules like authorize.net®, PayPal, 2Checkout, eWay, Worldpay, PayMate and NoChex

In addition to above common list, Virtuemart has following additional features -

·         Order History: Shopper can view all their previous Orders (and Order Details)

·         Order Confirmation Mail (customizable!) is sent to Shopper and Store Owner

·         Capable of using Secure Sockets Layer (https) Encryption (128-bit)

·         Shoppers can manage their User Accounts (registration required)

·         Advertisement features.

·         Content Management features.

·         Can be used as a Shop or just as an Online-Catalog (you can even turn off Price Display)

·         Order Management with Order History, Customer Notification and Order Edit Functionality

·         Shop Statistics / Control Panel with a Summary of new Customers, new Orders....