Axelar Network is a Web3 interoperability platform designed to connect all blockchains through an open stack, enabling seamless cross-chain transactions and communication. It provides tools like the Interchain Token Service, which allows ERC-20 tokens to move across multiple blockchains while maintaining their properties. Axelar also supports smart contracts and a scalable, secure proof-of-stake verification system, making it a robust solution for developers looking to build decentralized applications that operate across various blockchain networks.