Your essential gateway to Web3, decentralized applications, and the Ethereum blockchain. Discover how this powerful crypto wallet and browser extension empowers you to interact with the decentralized web securely and seamlessly.
MetaMask is more than just a wallet—it's your identity, your access point, and your secure vault for the decentralized internet.
Store, send, and receive Ethereum and ERC-20 tokens securely with a user-friendly interface that puts you in control of your assets.
Connect to decentralized applications (dApps) directly from your browser. MetaMask bridges the gap between traditional web and Web3.
Use MetaMask as your universal login for Web3 applications without creating new accounts or remembering multiple passwords.
A step-by-step, visual guide to linking your wallet to decentralized websites and apps.
Navigate to a decentralized application (dApp), such as Uniswap or OpenSea. Look for a prominent button labeled "Connect Wallet", "Sign In", or a similar call-to-action, typically located in the top-right corner of the website.
Clicking this button initiates the secure handshake between the dApp and your MetaMask wallet.
A modal window will appear showing various wallet options (MetaMask, WalletConnect, Coinbase Wallet, etc.). Click on the MetaMask icon.
If you have the MetaMask browser extension installed and unlocked, it will automatically open a connection request pop-up.
Tip: If the pop-up doesn't appear, check that your MetaMask extension is active and not blocked by your browser.
Your MetaMask extension will display a detailed connection request. This screen is critical for security. It shows you:
Carefully review this information before proceeding.
Click "Next" and then "Connect" in the MetaMask pop-up to finalize the link. The website will now update to show your connected wallet address, usually in the top corner, confirming the successful connection.
The dApp can now read your public wallet address to display relevant information (like your token balances). Remember, connecting a wallet only grants permission to view your address. You must manually approve every single transaction (like buying or swapping) in a separate MetaMask pop-up before any funds can move.
Security Note: You can manage or revoke a dApp's connection anytime in MetaMask Settings > Permissions.
MetaMask gives you full ownership and control of your cryptocurrency assets through a secure, non-custodial wallet system. Unlike exchange wallets where you don't control the private keys, MetaMask ensures you are the sole owner of your funds.
"Not your keys, not your crypto" - With MetaMask, you hold your private keys, ensuring true ownership of your digital assets.
Key security features include:
Understanding the architecture and advanced functionality of your Web3 gateway
Unlike bank accounts or exchange wallets, MetaMask does not hold your keys or funds. Your private keys are encrypted and stored locally on your device. This means you have complete sovereignty—no third party can freeze or seize your assets.
MetaMask uses an HD wallet structure. From your single Secret Recovery Phrase, it can generate a virtually unlimited number of unique public addresses and private keys. This allows you to create separate accounts for different purposes while managing them all with one master phrase.
When you approve a transaction (like sending ETH), MetaMask signs it with your private key (which never leaves your device) and broadcasts it to the Ethereum network via a node. You pay a "gas fee" to network validators to process and confirm your transaction on the blockchain.
The technical foundation that makes MetaMask secure and powerful
Ethereum Integration
Web3.js Library
HD Wallet Structure
JSON-RPC Protocol
End-to-End Encryption
Open Source
Different wallets serve different purposes. Here's how MetaMask compares to other popular options:
| Feature | MetaMask | Hardware Wallets | Exchange Wallets |
|---|---|---|---|
| Security Level | High (non-custodial) | Very High (cold storage) | Medium (custodial) |
| dApp Interaction | Excellent | Good (with connection) | Poor |
| Ease of Use | Very Easy | Moderate | Easy |
| Cost | Free | $50-$200 | Free (with fees) |
| Mobile Access | Yes (mobile app) | With phone connection | Yes |
| Best For | dApp users & traders | Long-term storage | Beginners & traders |
For optimal security: Use MetaMask for daily dApp interactions and trading, and a hardware wallet like Ledger or Trezor for storing large amounts long-term.
MetaMask is your passport to the decentralized internet. Whether you're trading tokens, collecting NFTs, participating in DeFi, or exploring the metaverse, MetaMask provides the secure, user-friendly gateway you need.
Always verify you're on the official MetaMask website (metamask.io) before downloading to avoid phishing scams and fake wallets.