Abstract: Today the same product is available on multiple websites. User may not be aware of all the websites where the products are available. User also needs to visit each website individually to check the availability of the product and its price on different websites. If the customer does not check all the websites they may lose the price bene?t and end up buying the product at a higher price. To avoid this, the application to be developed will provide a widget which will compare price of the same product from different websites and give him the price comparison of all the websites that have been selected by the user previously. To compare the prices Mash-up Technology will be used with the help of APIs to get data from different websites.

Keywords: e-Commerce, GUI, Fuzzy logic.