MetaMask is a browser extension and mobile app that serves as a gateway to Ethereum and other decentralized applications (dApps). With MetaMask, you can manage your Ethereum assets, interact with dApps, and access decentralized finance (DeFi) platforms directly from your browser or mobile device.
MetaMask also allows you to store and manage your Ethereum-based tokens (ERC-20, ERC-721) with a high level of security and privacy. It’s your bridge to the world of Ethereum-based decentralized applications and smart contracts.