Your Gateway to Web3 Starts With the MetaMask Extension
The MetaMask browser extension is the simplest way to buy, store, send and swap crypto — and to explore the whole world of dApps and NFTs without ever leaving your browser.
What Is the MetaMask Extension?
The MetaMask extension is a free cryptocurrency wallet that lives inside your web browser. It lets you hold Ethereum-based tokens, sign transactions, and connect to decentralized applications (dApps) with a single click — all while you keep full control of your private keys.
A Wallet in Your Browser
No separate app to open. The extension sits in your toolbar and pops up whenever a dApp needs your approval.
One Login for All of Web3
Connect to marketplaces, games, and DeFi apps instantly — no need to create a new account for every site.
You Hold the Keys
MetaMask is self-custody. Your seed phrase and private keys stay encrypted on your device, never on a server.
Everything You Can Do With MetaMask
Buy & Sell Crypto
Purchase ETH and other tokens directly in the extension using cards, bank transfers, or Apple Pay and Google Pay.
Swap Tokens
Trade between tokens at the best available rates, with built-in price and slippage protection.
Collect NFTs
View, store and manage your NFTs and digital collectibles right from your wallet.
Multi-Chain Support
Use Ethereum, Polygon, BNB Chain, Arbitrum, Optimism and dozens more networks from one extension.
Explore dApps
Connect to DeFi, gaming, and social apps safely — every transaction waits for your signature.
Privacy Controls
Choose what data to share, manage permissions per site, and revoke access anytime.
How to Install the MetaMask Extension
It takes about two minutes and works the same way on every major browser.
Visit the official download page
Always install from the official MetaMask website to avoid fake or malicious copies.
Add it to your browser
Click "Add to Chrome / Firefox / Edge / Brave" and confirm the installation.
Create your wallet
Set a strong password, then write down your 12-word secret recovery phrase and store it offline.
Add funds & explore
Buy crypto, receive tokens, or connect to your first dApp. You're ready to go.
Supported browsers
The MetaMask extension is available for all the most popular desktop browsers:
On mobile, MetaMask is also available as a dedicated app for iOS and Android, with a built-in browser for dApps.
Go to official download →MetaMask Security Tips
Frequently Asked Questions
Yes, the MetaMask extension is completely free to download and use. You only pay the normal network (gas) fees when you make transactions on a blockchain.
The MetaMask extension works on Chrome, Firefox, Microsoft Edge, and Brave. It is also available as a mobile app for iOS and Android.
MetaMask uses strong encryption and keeps your private keys on your own device. However, its safety also depends on you — protect your secret recovery phrase and only approve transactions from sites you trust.
Your 12-word secret recovery phrase is the only way to restore your wallet. If you lose it, nobody — including MetaMask — can recover your funds, so keep a backup in a safe offline place.
MetaMask is built for Ethereum and EVM-compatible networks. Native Bitcoin (BTC) is not supported by default, but you can hold wrapped versions of Bitcoin, such as Wrapped BTC (WBTC), on supported chains.