A digital currency exchanger is like a checkout person at the store. It's a person or website that helps people buy, sell, and exchange digital currencies like Bitcoin, Ethereum, and Litecoin. When you use a digital currency exchanger, you can put in your money and get cryptocurrency in return. One of the easiest ways to do this is to send traditional money to the exchanger, and then the exchanger will give you the cryptocurrency in return. This allows you to buy, sell, and exchange digital currency without having to worry about trading it yourself.