Metamask® offers a robust wallet feature that supports Ethereum (ETH), ERC-20 tokens, and ERC-721 collectibles (NFTs). MetaMask Wallet Users can send, receive, and manage their assets with ease directly from their browser. Metamask® offers a robust wallet feature that supports Ethereum (ETH), ERC-20 tokens, and ERC-721 collectibles (NFTs). Users can send, receive, and manage their assets with ease directly from their browser. MetaMask is a web browser extension and mobile app that allows you to manage your Ethereum private keys. By doing so, it serves as a wallet for Ether and other tokens, Available as a browser extension and mobile app, MetaMask Wallet provides you with a keystore, secure login, token wallet, and token exchange—everything you need to manage your digital assets.