> ## Documentation Index
> Fetch the complete documentation index at: https://docs.polygon.technology/llms.txt
> Use this file to discover all available pages before exploring further.

# MetaMask on Polygon

> MetaMask key properties and security tips for use with Polygon networks.

<Warning title="Content disclaimer">
  Please view the third-party content disclaimer [here](https://github.com/0xPolygon/polygon-docs/blob/main/CONTENT_DISCLAIMER.md).
</Warning>

[MetaMask](https://metamask.io/) is a non-custodial crypto wallet available as a browser extension and mobile app. It connects to Ethereum-compatible networks, including Polygon, without requiring you to run a full node.

| Property             | Value                        |
| -------------------- | ---------------------------- |
| Type                 | Non-custodial / HD           |
| Private key storage  | User's local browser storage |
| Ethereum connection  | Infura                       |
| Private key encoding | Mnemonic                     |

<Tip>
  * Back up your Secret Recovery Phrase before using MetaMask with any real funds.
  * If your device breaks, is lost, stolen, or corrupted, there is no other way to recover your accounts.
  * See [Basic Safety and Security Tips for MetaMask](https://metamask.zendesk.com/hc/en-us/articles/360015489591-Basic-Safety-and-Security-Tips-for-MetaMask) for full guidance.
</Tip>

To add Polygon PoS or zkEVM networks to MetaMask, see [Add Polygon network](/tools/wallets/metamask/add-polygon-network).