Online auction however is a different business model where the items are sold through price bidding. Usually, bidding has a start price and ending time. Potential buyers are in the auction and the winner is the one who bids on the item for the highest price. For buying products online users have to provide their personal details like email address, license number, NID etc. Only the valid user will have the authority to bid. Cloud base secure Online Auction System project is basically a web application that is created in HTML, CSS, Bootstrap, Javascript, PHP, and Laravel framework of PHP.