MetaMask
The default EVM browser wallet — every dApp expects it; also mobile with an in-app browser.
| Type | Browser extension |
|---|---|
| Custody | Self-custody — the user holds the keys |
| Platforms | Chrome, Firefox, Brave, iOS, Android |
| Open source | Yes — source code |
| Multisig | Not recorded |
| Account / KYC | No identity verification |
| Official site | metamask.io |
Cryptocurrencies it holds
Token networks
Holds tokens issued on Ethereum, BNB Smart Chain, Polygon, Arbitrum, OP Mainnet, Base, Avalanche and Linea.
Features
Security record
No user funds lost through a fault of the maker's, on record as of 13 October 2026.
Customer data leaked
- 2023 — A support-ticket vendor breach exposed tickets from about 7,000 people. source
An infrastructure incident disclosed in September 2026 is still open; MetaMask reports no evidence that wallets or funds were affected.
Only the maker's own failures count; phishing and lab attacks that need the stolen device do not. Every wallet compared: Crypto wallet hacks, and the wallets that were never hacked.
Questions
Has MetaMask been hacked?
No user funds have been lost through a fault of MetaMask's maker, on record as of 13 October 2026. Customer data has leaked: 2023, A support-ticket vendor breach exposed tickets from about 7,000 people.
Which coins does MetaMask support?
Ethereum, plus tokens on Ethereum, BNB Smart Chain, Polygon, Arbitrum, OP Mainnet, Base, Avalanche and Linea.
Is MetaMask open source?
Yes. Its source code is public at https://github.com/MetaMask.
Does MetaMask support multisig?
Not as far as the directory records. A multi-signature setup needs a wallet that can hold one of several keys; see the wallets directory for the ones that do.
Is MetaMask custodial?
No. MetaMask is self-custody: the user holds the keys, and nobody else can move the funds.
Other browser extensions
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The wallets directory compares every wallet by type, custody and the coins it holds. A wallet's place there is not for sale.