Polygon blockchain is a Layer 2 scaling solution for Ethereum, designed to improve scalability, reduce transaction fees, and enhance speed without sacrificing security. By creating sidechains that run alongside the Ethereum network, Polygon enables faster and more cost-effective transactions, making it ideal for decentralized applications (dApps) and DeFi platforms. It provides developers with tools to build scalable and user-friendly applications while maintaining compatibility with Ethereum's ecosystem. Polygon has gained popularity for its efficiency and ability to support growing blockchain networks.