Wrap & Unwrap ETH
Arbitrum Wrapper
Arbitrum Wrapper: turn ETH into WETH and back on Arbitrum. Rollup gas, and the WETH is what the DeFi contracts here expect.
How to use the Arbitrum Wrapper
- Connect your Arbitrum wallet
- Choose Wrap (ETH to WETH) or Unwrap (WETH to ETH)
- Enter the amount you want to convert
- Confirm the fee transaction and then the wrap transaction
- Your WETH (or ETH) is updated within seconds
Benefits of Wrapper
One transaction
send ETH, receive WETH, or the other way round
Always one for one
the wrapper holds your ETH and issues the same amount
Any amount
wrap what a single trade needs, unwrap part of it later
What contracts expect
Uniswap pools and DeFi protocols hold WETH, not ETH
Nothing custodial
the wrapper contract holds it and you redeem whenever you want
No coding
no router call to compose and no contract to interact with by hand
If you need more help contact our team
Got questions?
If you need more help contact our team
Any amount, whenever you like. WETH is redeemable one for one at all times, so unwrapping half a balance leaves the rest wrapped and usable.
It deposits your ETH into the wrapper contract, which issues you the same amount of WETH, an ERC-20. Unwrapping returns the ETH and burns the WETH. The rate is one for one in both directions and there is no lock-up.
Because ETH is the network currency and not a token: it has no transfer or approve function for a contract to call. Anything written against the ERC-20 standard needs WETH instead, which is most of DeFi.
Yes, any amount at any time. The rest stays wrapped and usable.
The wrapper is one of the most used contracts on any EVM chain and does one thing: hold ETH and issue WETH against it. Your claim is the WETH in your wallet, redeemable whenever you want.
A small fee shown before you sign, plus Arbitrum gas. The conversion never takes a cut: what goes in comes out.
Wrapped ETH is the unit of account here
Arbitrum's DeFi runs on WETH: pools pair against it, lending markets take it as collateral, and vaults denominate in it. Wrapping is not a detour on this network so much as converting into the form everything downstream uses.
Watch how it works