Introduction to MetaMask
MetaMask (commonly known as "Little Fox" in Chinese communities) is a software cryptocurrency wallet designed for interacting with the Ethereum blockchain. Available as a browser extension and mobile app, it enables users to:
- Securely manage Ethereum-based assets
- Interact with decentralized applications (DApps)
- Execute token swaps
- Store private keys locally
Developed by ConsenSys Software Inc. and launched in 2016, MetaMask has grown to become one of the most essential tools in the Web3 ecosystem.
👉 Get started with MetaMask today
Key Features
Multi-Platform Availability
- Browser extensions (Chrome, Firefox, Brave)
- Mobile apps (iOS & Android)
Built-In Token Swaps
- DEX aggregation via MetaMask Swaps
- 0.875% service fee per transaction
Web3 Integration
- Seamless DApp connectivity
- Support for Ethereum and EVM-compatible chains
Security Features
- Local private key storage
- Seed phrase backup
Technical Specifications
| Detail | Information |
|---|---|
| Developer | ConsenSys |
| Initial Release | 2016 |
| Current Version | 12.20.0 (Stable, June 2025) |
| Programming Language | JavaScript |
| Supported Platforms | iOS, Android, Desktop Browsers |
| Languages Supported | 56 (Including English, Chinese) |
| Wallet Type | Hot Wallet (Non-Custodial) |
| Website | metamask.io |
Evolution of MetaMask
Early Years (2016-2019)
- Initially available only as browser extensions
- Gained rapid adoption among early Ethereum users
Mobile Expansion (2019-2020)
- Closed beta testing began in 2019
- Official mobile launch in September 2020
Recent Developments (2021-Present)
- Introduced swap functionality
- Expanded support for Layer 2 networks
- Reported 21+ million monthly active users (2021)
Using MetaMask: Core Functions
Creating a Wallet
- Download the extension or app
- Generate a new wallet
- Securely store your seed phrase
- Fund your wallet with ETH
Connecting to DApps
- Visit a DApp website
- Click "Connect Wallet"
- Select MetaMask from options
- Approve the connection request
Executing Token Swaps
- Open the Swap interface
- Select input/output tokens
- Review exchange rate
- Confirm transaction
Security Considerations
While MetaMask provides robust security features, users should:
- Never share seed phrases
- Verify contract addresses before interacting
- Use hardware wallets for large holdings
- Beware of phishing attempts
👉 Secure your crypto assets now
FAQ Section
Is MetaMask free to use?
Yes, the wallet itself is free. Network fees (gas) apply for transactions, and swaps incur a 0.875% service fee.
Can I use MetaMask on multiple devices?
Yes, by importing your wallet using the seed phrase. However, for security reasons, this isn't recommended for all devices.
What chains does MetaMask support?
Primarily Ethereum and EVM-compatible chains like Polygon, BSC, and Arbitrum through custom RPC settings.
How do I recover my wallet if I lose access?
Using your 12-word seed phrase, which should be stored securely offline.
Why choose MetaMask over other wallets?
Its seamless DApp integration, large user base, and continuous development make it ideal for Ethereum users.
Are there any privacy concerns with MetaMask?
Some critics note potential information leakage to trackers, though recent updates have addressed many privacy issues.