$BNB BNB (Binance Coin) is the native cryptocurrency of the Binance ecosystem, originally launched in 2017 as an ERC-20 token on Ethereum before migrating to Binance Chain. It serves multiple purposes, including trading fee discounts on Binance, transaction fees on BNB Chain, and participation in token sales on Binance Launchpad. BNB is also used for payments, smart contracts, and DeFi applications. With a built-in burn mechanism, Binance periodically removes a portion of BNB from circulation, reducing supply and increasing scarcity. Over time, BNB has evolved beyond an exchange token into a key asset in the broader blockchain and crypto ecosystem.