$BNB is the native cryptocurrency of the BNB Chain, a blockchain network developed by Binance. BNB has evolved into one of the top cryptocurrencies by market capitalization. Initially created as a utility token to offer discounted trading fees on the Binance exchange, BNB's role has expanded to support various applications within the Binance ecosystem, including governance, decentralized finance (DeFi) projects, and non-fungible token (NFT) ecosystems.