MetaMask
MetaMask: Your Secure Gateway to Web3, DeFi, and NFTs
MetaMask is the most trusted self-custody crypto wallet and dApp browser for exploring Web3. Whether you are buying your first NFT, swapping tokens, or building a DeFi strategy, MetaMask puts you in control of your assets and identity. Available as a browser extension and mobile app, it unlocks seamless access to Ethereum and EVM-compatible networks with powerful privacy controls, intuitive UX, and flexible security options. Ready to explore the open internet of value? Start with MetaMask and own your journey.
What is MetaMask?
MetaMask is a self-custody wallet that stores and secures your private keys locally on your device. It connects you to Ethereum and popular EVM networks like Polygon, Arbitrum, and BNB Smart Chain, enabling you to hold tokens, manage NFTs, interact with decentralized applications, and sign transactions with confidence. With a clean interface, integrated swaps and network management, MetaMask brings the power of Web3 to your everyday browser and phone, minus the complexity.
Why Choose MetaMask?
- 🦊 Self-custody freedom: You hold your keys and your crypto. No centralized intermediaries.
- 🌐 Multi-network support: Use Ethereum mainnet or add EVM networks in seconds for faster, cheaper transactions.
- ⚡ Built-in swaps & bridges: Compare rates, swap tokens, and bridge assets without leaving MetaMask.
- 🔒 Security-first: Seed phrase backup, biometric locks on mobile, and hardware wallet integrations.
- 🧭 dApp access made easy: Connect to DeFi, GameFi, NFT marketplaces, and DAOs with one secure click.
- 📊 Portfolio & NFT view: Track balances, monitor NFTs, and stay on top of your Web3 activity.
- 🧩 Developer-friendly: Open-source roots, testnet support, and robust tooling for builders.
How MetaMask Works
Self-custody and keys
When you create a MetaMask wallet, you receive a secret recovery phrase (seed phrase) that derives your private keys. These keys never leave your device unless you explicitly export them. Anyone with your seed phrase can access your funds, so store it offline in multiple secure locations. MetaMask simply signs transactions on your behalf; assets live on the blockchain, not inside the app. That means you can restore your wallet on any device with the same seed phrase.
Networks and gas
MetaMask connects by default to Ethereum mainnet, but you can add networks like Polygon, Arbitrum, Optimism, and BNB Smart Chain. Each network uses its own gas token for fees (e.g., ETH for Ethereum, MATIC for Polygon). MetaMask helps you set gas fees and shows estimated confirmation times, so you can balance speed and cost. Switch networks from the top of the interface and keep track of your activity per network.
dApp connections
When a dApp requests to connect to MetaMask, you choose which account to share and what permissions to grant. You can disconnect anytime. MetaMask displays transaction details and data so you can verify what you are signing. It also supports WalletConnect for compatible apps, letting you use MetaMask across browsers and devices with minimal friction.
Getting Started with MetaMask
- Install the official MetaMask browser extension (Chrome, Firefox, Brave, Edge) or download the mobile app from your app store.
- Create a new wallet and generate your secret recovery phrase. Write it down and keep it offline in multiple safe places.
- Set a strong password and enable biometric locks on mobile for quick yet secure access.
- Fund your wallet by buying crypto via integrated providers or by receiving tokens from another wallet or exchange.
- Add EVM networks as needed. Use verified RPC details, or select from recommended networks in the interface.
- Connect to dApps. Review permissions, confirm transactions carefully, and sign only what you understand.
- Back up regularly. Consider a hardware wallet for large balances and advanced security.
Core Features You Will Love
Swaps and bridges
MetaMask includes an integrated swap feature that aggregates quotes across multiple liquidity sources. Compare prices, review slippage, and swap tokens directly in your wallet. Need to move assets to another EVM network? Use bridging options to transfer tokens cross-chain. This keeps your workflow fluid and saves time without compromising on transparency or control.
Portfolio and NFTs
Track your token balances and view your NFTs in one place with MetaMask. The wallet supports ERC-20, ERC-721, and ERC-1155 standards, displaying assets in a clean interface. On mobile, the dApp browser makes it easy to mint, trade, or stake with only a few taps, while portfolio tools help you monitor performance and network exposure.
Security and privacy
MetaMask empowers you with layered security: local key storage, clear signing prompts, and optional hardware wallet integrations for cold signing. Privacy features help minimize data sharing, and you can customize RPC endpoints or use privacy-forward providers. Always verify addresses, beware of look-alike sites, and use phishing protection to keep your Web3 identity safe.
MetaMask vs Other Wallets
| Feature | MetaMask | Trust Wallet | Coinbase Wallet |
|---|---|---|---|
| Self-custody | Yes | Yes | Yes |
| Platforms | Browser extension & mobile | Mobile | Browser extension & mobile |
| EVM network support | Extensive, easy network add | Broad multi-chain | Broad EVM support |
| dApp browser | Built-in on mobile; extension connects via site | Built-in | Built-in on mobile; extension connects via site |
| Built-in token swaps | Yes, aggregator | Yes, integrated | Yes, integrated |
| Hardware wallet support | Yes (e.g., Ledger, Trezor) | Limited | Limited |
| Ideal for | dApp power users, DeFi, NFTs | Mobile-first users | Coinbase ecosystem users |
Pro Tips to Save Gas and Stay Safe
- ✅ Use EVM networks with lower fees (e.g., Polygon, Arbitrum) when possible and bridge assets strategically.
- ✅ Batch actions and avoid peak congestion; adjust gas priority only as needed for confirmation speed.
- ✅ Double-check contract addresses from official sources before interacting or adding custom tokens.
- ✅ Enable hardware wallet signing in MetaMask for large transfers and long-term holdings.
- ✅ Keep your seed phrase offline; never enter it into a website, form, or chat app.
- ✅ Use separate accounts for experimentation, trading, and long-term storage to compartmentalize risk.
- ✅ Review every transaction prompt; if something looks off, reject and verify with the dApp team.
Who MetaMask Is For
MetaMask is designed for curious beginners, active crypto natives, and builders alike. If you value control over your keys, flexibility across EVM networks, and a clean path to DeFi and NFTs, this wallet is for you. It brings power and simplicity together so you can explore, learn, and create at your pace without relying on custodial services.
- Newcomers who want a simple, secure way to start with Ethereum and EVM chains.
- DeFi explorers seeking fast swaps, bridging, and consistent dApp connectivity.
- NFT creators and collectors who want seamless minting and portfolio visibility.
- Developers who need reliable wallets for testing, signing, and user flows.
- DAO contributors who sign proposals, delegate votes, and manage on-chain governance.
Own your keys, own your future. With MetaMask, you are not just using the internet — you are helping build it.
Frequently Asked Questions about MetaMask
What is MetaMask and how does it differ from an exchange account?
MetaMask is a self-custody wallet that stores your private keys locally and lets you interact directly with blockchains and dApps. An exchange account is typically custodial, meaning the platform holds keys on your behalf. With MetaMask, you control your assets; with exchanges, you rely on their custody and withdrawal policies.
Is MetaMask safe to use?
MetaMask is widely used and designed with security in mind: local key storage, explicit transaction prompts, and hardware wallet support. Security ultimately depends on your practices. Protect your seed phrase, verify dApp URLs, and consider hardware wallets for large balances. Never share recovery phrases or sign unknown data.
How do I recover my MetaMask wallet if I lose my device?
Reinstall MetaMask on a new device and choose the restore option using your secret recovery phrase. This regenerates your accounts and balances from the blockchain. If you do not have the seed phrase, recovery is not possible — keep it backed up offline in multiple secure places.
What networks does MetaMask support?
MetaMask supports Ethereum by default and can connect to EVM-compatible networks such as Polygon, Arbitrum, Optimism, and BNB Smart Chain. You can add networks manually or select from recommended options. Each network has its own native gas token and fee market.
Does MetaMask charge fees for swaps or bridges?
When you use built-in swaps in MetaMask, an aggregator fee may apply, and you always pay network gas fees. Bridging can also include network and protocol fees. MetaMask displays pricing and estimated costs before you confirm, so you can compare and choose the most efficient route.
Can I connect a hardware wallet to MetaMask?
Yes. MetaMask supports leading hardware wallets for added security, allowing you to sign transactions with your device while managing accounts in the interface. This setup keeps private keys off your computer or phone, reducing attack surface for high-value holdings.
How can I avoid scams and phishing when using MetaMask?
Only use official download sources, bookmark trusted dApps, and double-check URLs. Never share your seed phrase or type it into a website. Review permissions and transaction details before signing. If something feels suspicious, cancel and verify via the project’s official channels. Consider separate accounts for testing new dApps.