Pre-sign simulation
See the exact balance change, the gas cost and any token approval before you approve anything.
Browser extension · Chrome, Brave, Edge & Arc
The multi-chain wallet that shows you exactly what a transaction will do — before you sign it.
About the wallet
Rabby Wallet is a browser extension built for people who use DeFi. Before you sign, it detects the network a dApp wants and simulates the transaction, so you know what you are approving and what it costs. Multi-chain by default, it switches networks for you, tracks balances across chains in one view, and warns you when a site looks risky or a signature could drain your funds. Add hardware wallets, manage several accounts, and connect to any dApp without juggling tabs. Install it in seconds, keep your keys on your own device, and explore web3 with clarity, speed, and control.
Features
Rabby Wallet focuses on the moment that matters: the signature. Each feature exists to make that moment readable, reversible and safe.
See the exact balance change, the gas cost and any token approval before you approve anything.
A dApp on another chain? The extension offers the switch instead of failing with a wrong-network error.
Every token across every supported network in a single dashboard, sorted by what actually matters.
Flagged sites, malicious contracts and dangerous signatures are called out — and can be blocked outright.
Pair a Ledger or similar device so every signature is confirmed on hardware, not on your screen alone.
Move value between tokens and chains without leaving the extension or trusting an unfamiliar site.
Setup
Open the official website and follow the link for your browser, then pin the extension to the toolbar. Nothing to configure.
Generate a new wallet or bring an existing one in. Keys are created and stored locally inside the extension, in your browser profile.
Use any dApp as usual. When a transaction appears, read the simulation, check the network and gas, then confirm — or reject.
Security
Rabby Wallet is self-custodial. That means the recovery phrase is the wallet — whoever holds it holds the funds. Treat it that way.
FAQ
Install, safety, chains and hardware wallets — the questions people ask most before adding a wallet to their browser.
Back to topIt is a non-custodial browser extension wallet for EVM chains. Instead of only asking you to approve whatever a dApp sends, it reads the request first: which network, what will change in your balance, what a signature would authorise.
Go to the official website and use its link to the verified store listing for your browser. After installing, pin it to the toolbar for quick access. Copycat listings do exist, so check the domain in your address bar first.
Installing and using the extension costs nothing. Your only costs are ordinary network gas fees, plus any swap or bridge fee the protocol you choose charges.
No. It is self-custodial: funds stay on-chain and are controlled by keys stored on your device. There is no company account holding your balance and no one who can recover your phrase for you — which is exactly why backups matter.
Yes. Connect a supported hardware device and every signature is confirmed on that screen, so a compromised computer alone cannot move your funds. You can keep hot accounts and hardware accounts side by side.
When a dApp requests a chain you are not currently using, the extension surfaces the request and offers to switch, showing the network it wants. You stay in control: the switch only happens when you accept it.
Chromium browsers such as Chrome, Brave, Edge and Arc. On the network side it covers mainstream EVM chains — Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Avalanche and many more — and switches between them for you.
Yes, by restoring from your recovery phrase inside the extension on that machine. Keep the phrase offline, and remember: no website, chat or support agent ever needs it.
Add the extension from the official source and connect your first dApp in under a minute.