Own Your Keys
MetaMask is a non‑custodial wallet: your private keys are encrypted on your device, not on a centralized server. That means you—only you—control access to your funds and identities across Web3.
Secure · Non‑custodial · Open Web
MetaMask Extension — Your Gateway to Web3
The MetaMask browser extension lets you access the decentralized web with confidence. Connect to Ethereum and EVM‑compatible networks, manage tokens and NFTs, and sign transactions securely—all from your favorite browser. Whether you are minting an NFT, exploring DeFi, or testing a dApp, MetaMask puts you in control of your keys and your data.
Connect to Thousands of dApps
From decentralized exchanges and NFT marketplaces to on‑chain games and social protocols, the extension provides a simple connect flow so you can approve permissions and sign actions with clarity.
Multi‑Network by Design
Easily switch between Ethereum Mainnet, popular L2s, and testnets. Add custom RPCs, track gas, and configure networks for development or production use without leaving your browser.
How to Install the MetaMask Extension
- Open your browser’s extension store (Chrome Web Store, Firefox Add‑ons, Edge Add‑ons, or Brave).
- Search for MetaMask and verify the publisher. Avoid look‑alikes and check reviews.
- Click Add to Browser, then pin the fox icon for quick access.
- Create a new wallet or import an existing one with your secret recovery phrase.
- Secure your recovery phrase offline. Never share it—anyone who has it can control your wallet.
- Connect to a dApp and review permissions before approving transactions.
Tip: Enable biometric unlock (where supported) and set custom alerts for spending limits to add another layer of protection when interacting with new contracts.
Why It Matters
Web3 brings open ownership and programmable value, but it also introduces personal responsibility. The MetaMask extension streamlines essential tasks—key management, signing, and network switching—so you can focus on building or exploring. Transparent prompts help you understand what you are approving, and the built‑in account view keeps balances and collectibles organized.
For creators and developers, MetaMask is a standard toolchain component. It enables quick testing of smart contracts, seamless wallet connection in dev environments, and convenient switching between testnets during iterative deployments.
Security Best Practices
- Back up your secret recovery phrase on paper or a hardware device stored offline.
- Verify extension authenticity in the official store before installation and updates.
- Use hardware wallet support for larger balances and long‑term holdings.
- Scrutinize permissions: limit approvals, revoke unused allowances, and set spend caps.
- Keep your browser and OS up to date to receive the latest security patches.
Remember: no legitimate team member will ever ask for your recovery phrase or private key. Treat them like the keys to your home—share with no one.
FAQs
Is MetaMask free to use?
Yes. You can download and use the extension for free. Network fees may apply when you send transactions on‑chain.
Which browsers are supported?
Major Chromium‑based browsers (such as Chrome, Brave, and Edge) and Firefox are supported. Always install from the official store listing for your browser.
Can I use a hardware wallet?
Yes. You can connect popular hardware wallets to sign transactions while keeping private keys offline.
Responsible Use
This page is an independent educational resource about the MetaMask extension. Always verify URLs and publishers, and never enter your recovery phrase on a website form. If something feels suspicious, stop and double‑check the source before proceeding.
By combining strong security habits with the extension’s clear signing prompts, you can navigate Web3 with the right balance of speed and safety.