BNB is the native cryptocurrency of the Binance exchange, one of the largest cryptocurrency trading platforms in the world. Launched in 2017, BNB was initially created as a utility token to pay for trading fees on the Binance platform at a discounted rate. Over time, its use has expanded to include payments for various services and products within the Binance ecosystem. BNB operates on the Binance Smart Chain, a blockchain network that supports smart contracts and decentralized applications. The token has gained popularity due to its various applications, including staking, participating in token sales, and making transactions on the Binance platform.