Polygon (formerly known as Matic Network) is a layer 2 platform for scaling and infrastructure development of Ethereum, designed to improve transaction speed and reduce transaction costs. It provides tools for creating Ethereum-compatible blockchain networks, providing high performance and security. The platform's main cryptocurrency, MATIC, is used to pay transaction fees and participate in network governance. Polygon supports a variety of scaling solutions, including POS chains and rollups technology, making it attractive to decentralized application (dApps) developers.