Using Blast Mobile? Follow the Blast Mobile withdrawal guide instead.
Before You Start
What You’ll Need
- Your wallet, connected to both Blast and Ethereum. The bridge will ask you to switch networks between steps.
- A small amount of ETH on Blast to pay for the first transaction.
- ETH on Ethereum to pay for the remaining transactions: 2 for ETH withdrawals, 3 for USDB withdrawals.
Withdraw ETH
1
Start your withdrawal on Blast
Go to blast.io/bridge, connect your wallet, and open the Withdraw tab. If you see a notice that you’ll no longer earn points or yield, click Continue Anyway.Select ETH, enter the amount you’d like to withdraw, and click Submit. If prompted, click Switch to Blast Mainnet. Then check the confirmation box, click Withdraw, and confirm the transaction in your wallet.
2
Prove your withdrawal on Ethereum
Wait up to 1 hour while the panel shows “Wait (up to 1 Hour)”. When your withdrawal is ready, click Switch to Ethereum Mainnet, then Prove Withdrawal, and confirm the transaction in your wallet.
3
Wait
Wait 1 day for the challenge period. The Claim Withdrawal button stays disabled until your withdrawal is ready.
4
Claim your ETH on Ethereum
Return to blast.io/bridge, open the History tab, and select your withdrawal. Click Claim Withdrawal and confirm the transaction in your wallet. Your ETH will arrive in your wallet on Ethereum.
Withdraw WETH
The bridge doesn’t support WETH, and doesn’t include WETH in your withdrawable ETH balance. Unwrap your WETH to ETH on Blast first, then withdraw it as ETH.1
Find your WETH balance
Go to the WETH contract on Blastscan, open the Contract tab, and select Read as Proxy. Find
balanceOf, enter your wallet address, and click Query. Copy the number shown.This number is your WETH balance in wei, the smallest unit of ETH (1 WETH = 1,000,000,000,000,000,000 wei).
2
Unwrap your WETH
Select Write as Proxy, click Connect to Web3, and connect your wallet on the Blast network. Find
withdraw, paste the number from the previous step into wad, and click Write. Confirm the transaction in your wallet.3
Withdraw as ETH
Your WETH is now ETH. Follow the steps to withdraw ETH.
Withdraw USDB
USDB is withdrawn as DAI on Ethereum, and has one extra step compared with ETH.1
Start your withdrawal on Blast
Follow the first step to withdraw ETH, but select USDB.
2
Prove your withdrawal on Ethereum
After up to 1 hour, click Switch to Ethereum Mainnet, then Prove Withdrawal, and confirm the transaction in your wallet.
3
Finalize your withdrawal on Ethereum
After 1 day, return to your withdrawal from the History tab. Click Finalize Withdrawal and confirm the transaction in your wallet.
4
Claim your DAI on Ethereum
Wait up to 1 day after finalizing while Blast processes your withdrawal. Once the Claim Withdrawal button is enabled, click it and confirm the transaction in your wallet. Your DAI will arrive in your wallet on Ethereum.
Troubleshooting
I can't find a withdrawal I started.
I can't find a withdrawal I started.
Open the History tab on blast.io/bridge with the same wallet connected. Withdrawals that are still in progress show Continue.
I see "Withdraw ... from Blast transaction failed" when proving, finalizing, or claiming.
I see "Withdraw ... from Blast transaction failed" when proving, finalizing, or claiming.
This usually means your wallet doesn’t have enough ETH on Ethereum to pay for gas. Add a small amount of ETH to the same address on Ethereum and try again.
I can't see my WETH on the Withdraw tab.
I can't see my WETH on the Withdraw tab.
WETH has to be unwrapped to ETH first. See Withdraw WETH.