$BNB BNB (short for "Build and Build") is the native cryptocurrency of the BNB Chain ecosystem, which includes BNB Beacon Chain and BNB Smart Chain (BSC). Originally launched in 2017 as Binance Coin on the Ethereum network, BNB later migrated to its own blockchain to support faster, more scalable, and low-cost transactions. BNB is widely used to pay for trading fees on Binance, one of the world’s largest cryptocurrency exchanges, and offers users discounts when used this way. Beyond exchange fees, BNB powers decentralized applications (dApps), smart contracts, and various DeFi protocols on the BNB Chain. With growing use in gaming, NFTs, and token launches, BNB plays a key role in the expanding crypto ecosystem.