---
description: >-
  MetaMask functions as a digital wallet, allowing users to store, send, and
  receive Ethereum and other ERC-20 tokens.
---

# Here are key aspects of MetaMask and its functionality:



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* **Security Features:**
  * MetaMask is designed with security in mind. Private keys are stored locally on users' devices, and the extension includes features like password protection to enhance security.
* **Network Management:**
  * Users can easily switch between Ethereum's mainnet and various testnets (Ropsten, Rinkeby, Kovan, etc.) to test and interact with DApps in a sandbox environment.
* **Token Swapping and Trading:**
  * MetaMask facilitates token swapping through decentralized exchanges (DEX) directly within the extension, allowing users to trade different cryptocurrencies without leaving the wallet interface.
* **Open Source:**
  * MetaMask is an open-source project, meaning that its source code is publicly available. This transparency allows the community to review and contribute to its development.
* **Community and Updates:**
  * MetaMask has an active community, and the development team regularly releases updates to enhance security, add new features, and improve the overall user experience.
