Listen now (4 min) | Exchanges allow users to buy, sell, and exchange cryptocurrencies. Just like we have stock and forex exchanges for buying and selling shares and foreign currencies, similarly we have exchanges for cryptocurrencies. In general, crypto exchanges allow buying and selling of cryptocurrencies using fiat currencies or stablecoins or other cryptocurrencies. For example, you can buy bitcoin using USD and sell bitcoin for USD. You can also convert bitcoin into ether and vice versa, using a crypto exchange.