Metamask

Metamask is a wallet that allows users to interact with the Ethereum blockchain. It is a browser extension that allows users to create, manage, and use Ethereum accounts and access decentralized applications (dApps) without having to use a full Ethereum node. It stores users' private keys locally and encrypts them with a password. Metamask also provides a user-friendly interface for interacting with dApps and executing transactions on the Ethereum network. It is popular among users of decentralized finance (DeFi) platforms and other Ethereum-based applications.