BNB (originally Binance Coin) is the native cryptocurrency of the BNB Chain ecosystem, a blockchain infrastructure developed by Binance, one of the world’s largest cryptocurrency exchanges. Initially launched in 2017 as an ERC-20 token on Ethereum, BNB was later migrated to Binance’s own blockchain - now split into two components: BNB Beacon Chain (governance) and BNB Smart Chain (BSC).
Today, BNB is a multifunctional asset used across Binance’s ecosystem for trading fee discounts, smart contract execution, token transfers, payments, and more. BNB can be bought on specialized exchanges and BNB can be traded for using other cryptocurrencies.