Magento is an Open Source ecommerce web application launched on March 31, 2008. It was created by Varien, building on components of the Zend Framework.

Compared to osCommerce and other open source e-commerce solutions, it is a complete set of tools to run an e-commerce site with almost all thinkable features. Unfortunately there is no slim basic version available, so even on a dedicated server this beauty with a package size of 45 MB and it's 229 databse tables will use a lot of server resources and can slow down your customers a bit.

General features

Site Management
Mobile Commerce
Marketing Promotions and Tools
International Support
Search Engine Optimization
Checkout
Shipping
Payment
Order Management
Customer Service
Customer Accounts
Catalog Management
Catalog Browsing
Product Browsing
Analytics and Reporting
Customer Reviews
Cross-Selling
Customer Tags
Compare Products
Wishlists
Google Base Integration
Google Website Optimizer Integration