Totmato Cart

There are a lot of choice of opensource cart package, one of the best is tomato cart. It clean and realy focus on cart.

Site Mangement 

In addition to the core site management tool, TomatoCart brings forth new ideas such as web mail, maintenance mode and department manager for a better user experience.
Site Management highlights include:

• Multi-lingual and Multi-currency support
• Separate web mail
• Accessibility per role 

Catalog Management and Browsing

TomatoCart provides a clear catalog layout, simplifying your work.
Catalog Management and Browsing highlights includes:

• Unlimited product categories with images associated
• Reviews and Ratings Management
• Search Box with Auto Search suggested Terms

Product Management and Browsing

TomatoCart supports sales of both physical and virtual goods. These products are well arranged in various manners.
Product Management and Browsing highlights include:

• Four kinds of products supported
• Separate price and stock management based on attribute combination
• Product image zoom and light box to display large images

  Customer Management

  
  TomatoCart provides a lot more than address book and store credits, including quite a few administration tools and customer-generated content.
  Customer Management highlights includes:
  
  
• Support for unlimited customer groups
• Add and edit customers in admin panel
• Support order discount for each customer group

Order Management

Many additional cases such as printing invoices have been taken into TomatoCart’s consideration.
Order Management highlights include:

• Add orders in admin
• Print invoices and packaging lists from the order screen
• Credit Slip or Store Credit for merchandise return

Payment

People from different countries have different favored payment methods. Just pick the right one for you among the 26 built-in payment methods in TomatoCart.
Payment gateways include:

• Amazon IPN
• Authorize.net
• PayPal 

Shipping

TomatoCart provides basic shopping options for customers. You are allowed to choose shipping methods based on zones and set different prices for each.
Shipping methods include:

• Flat Rate
• Table Rate
• USPS

Checkout

Checkout shouldn’t be a big hassle for online shoppers. It is quick and easy with TomatoCart.
Check-out highlights include:

• One-Page Checkout
• Checkout without accounts
• Ajax Shopping Cart

Statistics and Reports

Analytics is the key to knowing what is going on with your website. TomatoCart provides you with a comprehensive report list.
Statistics and Reports highlights include:

• Products reports
• Order reports
• Web Analytics Reports

Promotion tools and SEO

TomatoCart covers nearly all popular and effective promotion tools for online sales. Our SEO tools help bring you good results when customers are searching via search engines.
Promotion tools and SEO highlights include:

• Catalog Promotional Discount
• Product discounts based on quantity or customer groups
• Search Engine Friendly URLs

Content Management System

TomatoCart has a sophisticated CMS. Templates can be switched and modules can be manually organized.
CMS highlights include:

• Easily upload and install front end templates
• Content module -- Slide Show based on noobSlide slide show component
• Box module -- Products Scroller based on noobSlide slide show component