An online payment gateway is a technology that facilitates electronic transactions between customers and merchants. It acts as a bridge, securely transferring payment information from the customer’s bank to the merchant’s account. This process allows businesses to accept various payment methods, such as credit cards and digital wallets, over the internet. When a customer makes a purchase, the online payment gateway encrypts their payment details to ensure security. It then communicates with the bank to authorize the transaction. Once approved, the funds are transferred, and the merchant receives confirmation, completing the purchase process efficiently and safely.