Ethereum Name Service (ENS) is an open-source, distributed, and extensible naming system built on the Ethereum blockchain. It aims to make Ethereum-based web more accessible and understandable for humans, much like how the Internet’s Domain Name Service (DNS) simplifies internet navigation. ENS transforms human-readable Ethereum addresses into machine-readable alphanumeric codes, and vice versa. This functionality allows users to replace long, complex Ethereum addresses with simple, memorable ones, enhancing user experience and facilitating wider adoption of blockchain technologies. ENS is not a company but an open-source project that seeks to become a vital piece of infrastructure for Web3, similar to how DNS is integral to the internet.