osCommerce is a complete online store solution that contains both a catalog frontend and an administration tool backend, which can be easily installed and configured over a web-based installation procedure.

Customer / Frontend Functionality
- All orders stored in the database for fast and efficient retrieval
- Customers can view their order history and order statuses
- Customers can maintain their accounts
- Temporary shopping cart for guests and permanent shopping cart for customers
- Fast and friendly quick search and advanced search features
- Product reviews for an interactive shopping experience
- Forseen checkout procedure
- Secure transactions with SSL
- Number of products in each category can be shown or hidden
- Global and per-category bestseller lists
- Display what other customers have ordered with the current product shown
- Breadcrumb trail for easy site navigation

Product Functionality
- Dynamic product attributes relationship
- HTML based product descriptions
- Automated display of specials
- Control if out of stock products can still be shown and are available for purchase
- Customers can subscribe to products to receive related emails/newsletters

Payment Functionality
- Accept numerous offline payment processing (cheque, money orders, offline credit care processing, ..)
- Accept numerous online payment processing (2CheckOut, PayPal, Authorize.net, iPayment, ..)
- Disable certain payment services based on a zone basis

Shipping Functionality
- Weight, price, and destination based shipping modules
- Real-time quotes available (UPS, USPS, FedEx, ..)
- Free shipping based on amount and destination
- Disable certain shipping services based on a zone basis

Tax Functionality
- Flexible tax implementation on a state and country basis
- Set different tax rates for differ
- Charge tax on shipping on a per shipping service basis