Automatic network switching
It reads the chain a dApp is asking for and switches for you, instead of making you add RPC details by hand for every new network.
Browser extension · Ethereum, Base, Arbitrum, OP, Polygon & more
Rabby Wallet Extension: know what you are signing, on every chain
Rabby Wallet is a browser extension for people who move between chains. It detects the network a site is asking for and switches automatically, so you never sign on the wrong one. Before you approve anything, a simulation shows what the transaction will actually do — what leaves your wallet, what arrives, and which contract you are talking to. Your recovery phrase stays encrypted on your device and never reaches a server. Portfolio, balances and gas across chains sit in one place. Install it from the official source, keep your recovery phrase offline, and read every signature request before you click.
- Self-custodyKeys encrypted on your device
- 120+Chains supported
- Pre-signSimulation before approval
What you get
Built around one question: what am I approving?
Wallet interfaces usually hide the interesting part. The Rabby extension puts it in front of you before the signature.
Transaction simulation
See the expected balance changes and a plain-language warning if a signature looks like an outright drain.
One portfolio view
Token balances, positions and gas across supported chains in a single panel, rather than a wallet per network.
Local key storage
Keys are generated in the extension and encrypted on the device. Nothing about your phrase is sent to a company server.
Approval cleanup
See which contracts still have spending rights over your tokens, and revoke the ones you no longer use.
Readable signing prompts
Raw hex turned into something a person can review: the contract, the method and the amount involved.
Set-up
From install to first signature in four steps
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01
Install the extension
Open rabby.io yourself and follow the download link given there for your browser.
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02
Create or import a wallet
Write the recovery phrase on paper and store it offline. Never photograph or email it.
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03
Read the simulation
Before your first approval, check what the preview says will move in and out.
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04
Lock it down
Set a strong password, review token approvals monthly, and keep the extension updated.
Safety first
The three habits that keep a wallet yours
No extension can protect a recovery phrase you typed into the wrong place. Most losses start with a fake download page, a copy-pasted support account, or an approval nobody read.
- Type rabby.io yourself — sponsored search results are not a source.
- Your 12- or 24-word phrase is for the extension only. No site, chat or "support agent" needs it.
- Treat a wallet-connect prompt as a contract, not a login.
- Keep a small hot wallet for experimenting and a separate one for savings.
Before you install, check three things
The address bar ends in the project's own domain.
The store listing is the one linked from that site.
Nobody asked you to "verify your wallet" or enter a phrase.
If any of those is off, close the tab and start again from a bookmark.
FAQ
Frequently asked questions
A self-custody browser wallet. You create the keys on your own machine, and the extension is the interface you use to connect to dApps, approve transactions and track balances across chains.
From the project's own website at rabby.io, or the official browser-store listing that site links to. Copycat pages sit in ads and in the top of some search results, so a typed address or a saved bookmark beats a click.
The extension itself is free. You pay the usual network fee on whatever chain you are transacting on, plus any swap or bridge fee charged by the service you use.
Yes — you can add the same account by importing an existing recovery phrase or a private key, and your funds appear as they are on-chain. Do that on an offline-saved backup, never from a phrase you found online.
The expected change to your balances if you approve, the contract you are interacting with, and a warning when the result looks like a scam — for example, when an approval hands over everything in a token rather than a set amount.
Move what is left to a fresh wallet with a new recovery phrase, then revoke the approval that was granted. If your phrase was ever typed into a website, treat that wallet as compromised and migrate everything.
Still unsure? Ask in the project's own official channels — and check twice before you follow any account that messages you first.
Ready to install it properly?
Open the official site yourself, follow its download link, and keep your recovery phrase on paper.