Online coupons are digital vouchers or codes that offer discounts or special offers to consumers when purchasing online. They can be found on various websites in alphanumeric codes or clickable links. Retailers use them to attract customers, promote products, and boost sales, while consumers use them to save money on purchases. Online coupons often have terms and conditions, such as expiration dates or minimum purchase requirements, that users must follow to redeem them successfully. They have become a popular and convenient way for businesses and consumers to engage in cost-effective online shopping.