BNB Smart Chain is a blockchain platform created by Binance, a popular cryptocurrency exchange. It is a parallel blockchain that runs alongside Binance Chain, allowing users to create smart contracts and decentralized applications (DApps) in a more efficient and cost-effective manner compared to the Ethereum network. BNB Smart Chain uses Binance Coin (BNB) as its native cryptocurrency and has gained popularity for its high throughput, low transaction fees, and compatibility with the Ethereum Virtual Machine (EVM).