Looking for a MetaMask alternative without the browser extension?
Free wallet that works in any browser — no extension, no seed phrase, passkey sign-in.
OISY is a free, browser-based wallet that lives on the Internet Computer instead of a browser extension. Sign in with a passkey, hold ICP, Bitcoin, Ethereum, Solana, Base, Arbitrum, Polygon and BNB Chain assets natively, and skip the whole seed-phrase-on-paper ritual. Works in any modern browser.
Why switch from MetaMask?
- No browser extension required
- Passkey sign-in — no seed phrase to lose
- Multichain: ICP, Bitcoin, Ethereum, Solana, Base, Arbitrum, Polygon and BNB Chain — native, not wrapped
- Free — your keys stay yours
Our pick
OISY Wallet by DFINITY Foundation — Manage assets across multiple chains from one place. No extensions, no seed phrases. Launch
Frequently asked questions
- Do I need to install OISY?
- No. OISY is a website — open it and sign in with a passkey. No browser extension to install, update, or worry about being malicious.
- Can OISY hold my Ethereum?
- Yes — natively, via ckETH (chain-key Ethereum). It's not a wrapped token; the Internet Computer subnet holds real ETH and produces a 1:1 native asset.
- What about my existing seed phrase?
- OISY doesn't use seed phrases — it uses passkeys (WebAuthn). Your existing wallet (MetaMask) won't migrate directly; you'd transfer assets to a new OISY-managed address.
- Is OISY free?
- Yes. Your passkey signs you in, and the key that authorises your assets is held as shares across independent nodes via threshold cryptography, so no single party holds your funds.
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