The Star Name Service (SNS) is an omnichain naming system supporting Ethereum, Polygon, Avalanche, BNB Chain, Aptos, and Sui. It is a decentralized system that allows users to map human-readable names to addresses on multiple different blockchains. With its cross-chain functionality, SNS allows Web3 domain names to be resolved on different chains and enables users to easily and securely access their assets using the same name across multiple chains. The use of SNS greatly simplifies the process of interacting with multiple blockchains, as users only need to remember and share a single name instead of multiple complex addresses and Web3 names on different blockchains. This can be particularly useful for users who frequently use DApps on multiple blockchains.