Online auctions have effectively created a large marketplace for participants to bid and sell products and services over the Internet. In This project we are developing a software for online-Auction .online-Auction is known by several names, including ‘electronic reverse bid Auctions’, ‘reverse auctions’ or simply ‘e-Auctions’. Online auction is a group which is based for auction. If you want to something sell by auction then you post that on website This project user can do a bid on particular Products. The main objective of the e-Auction process must be to obtain best value and the highest price. It cannot be possible to achieve best value outcomes whilst the focus remains on price. There are two categories of persons one is customers and second one is vendor. Vendor can sell his products on this website and customer will purchase it. Product will be given to those customers who put a high bid price on product to purchase. One user can do a more than one bid on products. There are two categories of persons one is customers and second one is vendor. Both have their own registration form. There is a common login page for vendors and for users but when both login in, it would be easily find out that ether it is a vendor or a user because of their registration details because their registration forms are different. Customers should have an appropriate knowledge of the e- Auction subject its market, its market price.. In this website anyone wants to sell products will have to register first then a unique id is given to the registered users. After registered user have to give details of their products like (price of product ,at what price he/she wants to start the bid, image of the product) if he/she wants to sell his/her product