Wrap & Unwrap ETH
Blast Wrapper
Blast Wrapper: turn ETH into WETH and back on Blast. One transaction, and the balance stays yours throughout.
How to use the Blast Wrapper
- Connect your Blast 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
Thruster 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
A small fee shown before you sign, plus L2 gas. The conversion itself is always one for one: the wrapper holds your ETH and issues the same amount back.
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 Blast gas. The conversion never takes a cut: what goes in comes out.
Wrapping on a yield-bearing chain
Blast pays yield on ETH by default, and whether wrapped ETH keeps accruing depends on the specific contract you hold it in rather than on the act of wrapping. Worth checking where the WETH is going to sit before you assume the yield follows it.
Watch how it works