Secure authentication for the decentralized web
MetaMask is a cryptocurrency wallet and gateway to blockchain apps. It allows users to access their Ethereum wallet through a browser extension or mobile app, which can then interact with decentralized applications.
MetaMask provides a secure login method for Web3 applications without traditional usernames and passwords. Instead, it uses cryptographic proof to verify your identity on the blockchain.
Your private keys are stored locally on your device and never shared with servers. All transaction approvals happen directly in your wallet, giving you full control over your digital assets.
MetaMask connects you to Ethereum-compatible blockchains, allowing seamless interaction with decentralized applications, NFTs, and DeFi platforms across multiple networks.
When you visit a Web3 application that supports MetaMask, the site will detect your wallet and prompt you to connect. This connection allows the dApp to view your public address and request transactions, but it never gains access to your private keys or funds without explicit approval.
Websites with Web3 integration automatically detect if you have MetaMask installed in your browser.
The website requests to connect to your MetaMask wallet to access your public Ethereum address.
You review and approve the connection request directly in your MetaMask wallet interface.
Once connected, the website can recognize you by your Ethereum address and provide personalized content.
Enhanced Security: No passwords to remember or that can be phished. Your identity is cryptographically secured.
User Control: You decide what information to share and which transactions to approve.
Cross-Platform: Use the same identity across multiple dApps without creating separate accounts.
Privacy Focused: You can use different addresses for different services to maintain privacy.