See the outcome before you sign
Every signature opens with a simulation: what leaves your wallet, what lands back, which token approvals you're granting and what the gas really costs — in plain numbers, not hexadecimal.
Non-custodial · Open source · 100+ EVM networks
The Rabby Wallet Extension® is a browser wallet built for people who move between networks all day. It follows the dapp you're on, switches chains for you, simulates the transaction in plain numbers, and warns you before you sign something you never meant to approve.
One wallet, every network you actually use
In one sentence: it's a free, non-custodial browser wallet extension that works across every EVM network and shows you exactly what a transaction will do before you approve it. Instead of switching networks by hand or guessing at a contract you've never seen, you get the outcome — what leaves your wallet, what arrives, which permissions you're granting and what it costs in gas — in the popup itself. Your keys are generated and encrypted on your own device, so there's no account to create, no email to hand over and no company holding your funds.
Features
Most wallets ask you to trust the numbers after the fact. This one puts them in front of you first.
Every signature opens with a simulation: what leaves your wallet, what lands back, which token approvals you're granting and what the gas really costs — in plain numbers, not hexadecimal.
Open a dapp on Base, Optimism or Arbitrum and the wallet follows the chain the app is running on. No more "wrong network" dead ends and no manual RPC juggling.
Addresses and contracts get checked before they get your signature, so known drainers, lookalike tokens and hostile approvals are flagged while you can still back out.
Balances, tokens, NFTs and activity from all your EVM networks in a single view, with a per-chain breakdown whenever you want the detail behind the total.
Keys are created and encrypted in your browser and never leave your device. No sign-up, no email, no custodian between you and your own funds.
Connect a hardware wallet or WalletConnect session for high-value accounts, and read the open-source code yourself if you'd rather verify than trust.
Setup guide
Five minutes, one browser, no account. Here's the safe order to do it in.
Open your browser's own extension store and install Rabby from the verified listing — the one with the publisher details you recognise. Bookmark that page first: links forwarded through chat, email or social media are the single most common way people end up installing the wrong extension.
Choose a strong password, then write the recovery phrase on paper and store it offline — ideally in two separate places. Nobody legitimate will ever ask you for it again: not support, not an admin, not a giveaway, and not this page.
Send assets from an exchange or another wallet, then open a dapp and watch the preview panel do the reading for you — chain, balance changes, approvals and fees. Add a custom network only if a chain you use isn't detected automatically.
The install checklist is the part worth re-reading before you connect a wallet that holds anything you'd miss.
Security
No extension, however well built, can protect a recovery phrase you typed into the wrong page. These habits do more for your funds than any setting.
This is an independent informational guide to the Rabby Wallet Extension®. It is not affiliated with, endorsed by or operated by Rabby or DeBank.
FAQ
It's a non-custodial browser wallet for EVM-compatible networks. It keeps your keys on your own device, follows the network a dapp is using, and simulates each transaction before you approve it so you can see the balance changes and approvals in advance.
Yes. Installing and using the extension costs nothing. The only cost you'll ever see is the network gas fee on the transactions you choose to sign.
It's built for EVM-compatible chains — Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Avalanche, zkSync Era and many more — and you can add custom networks yourself if you use something less common.
Your keys are generated and encrypted locally in the browser and never leave your device. Because the wallet is non-custodial, nobody else — including the team that builds it — can move funds without your signature.
Install only from the official extension store listing for your browser, bookmark that listing, and check the address bar before you confirm anything. If a link to a "wallet download" arrives in a DM, an email or a group chat, treat it as hostile until proven otherwise.
Yes. Hardware wallets and WalletConnect sessions can be connected, so accounts holding serious value can keep their keys on a device that stays offline.
Two things stand out: the pre-sign transaction preview that shows the real outcome of a signature, and automatic chain following that removes the manual network switching most multi-chain users do dozens of times a day.
Install the Rabby Wallet Extension® from the official listing, keep your recovery phrase offline, and let the preview panel read the fine print for you.