Online coupons are digital vouchers that offer discounts, deals, or special promotions when shopping online. These coupons can be applied during the checkout process on various e-commerce websites, providing customers with savings on a wide range of products and services. Typically, online coupons come in the form of alphanumeric codes that customers enter into a designated field to redeem the discount. They can offer a percentage off the total purchase, free shipping, or a fixed dollar amount off. Online coupons are a popular marketing tool for businesses to attract customers, increase sales, and build customer loyalty.