What is MetaMask?

MetaMask is a leading self-custodial cryptocurrency wallet and Web3 gateway that enables users to store Ethereum and other compatible tokens, interact with decentralized applications, and manage their digital identity across the blockchain ecosystem through convenient browser extensions and mobile applications.

Beyond basic wallet functionality, MetaMask serves as a critical bridge between traditional web browsers and blockchain networks, injecting Web3 capabilities into regular websites and allowing users to sign transactions, connect to dApps, and manage permissions without leaving their familiar browsing environment.

The wallet provides essential security features including encrypted storage of private keys on the user's device, customizable transaction approvals, connection management, and hardware wallet integration, giving users control over their digital assets while maintaining a relatively intuitive user experience.

As one of the most widely adopted tools in the ecosystem with millions of active users, MetaMask has become the de facto standard for Ethereum interaction, supporting not just the main Ethereum network but also test networks, layer-2 solutions, and compatible alternative blockchains through its customizable network settings.

The platform continues to evolve beyond its wallet origins into a comprehensive Web3 suite with features like token swaps, NFT management, dApp discovery, and institutional solutions, playing a pivotal role in making blockchain technology accessible to mainstream users while maintaining the core principles of self-custody and user control.