Bridge to Arbitrum

Bridge ETH & Tokens (L1 to L2) – Arbitrum Bridge

Arbitrum One does NOT have a native token so all transaction fees on Arbitrum are paid in ETH.

So to use DApps on Arbitrum One network you first need to deposit some Ether onto the Arbitrum chain this is to pay for the transaction fees (ArbGas).

Next to move ETH and tokens from Ethereum chain to Arbitrum or from Arbitrum to Ethereum you need to use the token bridge.

Failing to use the bridge for transfers could result in a loss of funds, so read carefully

Using Arbitrum token bridge you can move ETH and migrate any type of tokens like ERC-20, ERC-721, ERC-1155 etc over to L2 and use it on Arbitrum One.

Similarly you can migrate your funds back to Ethereum network from Arbitrum L2 using the Arbitrum bridge but remember that there is a 7 day withdrawal period. This is due to the current design limitations of the optimistic-styled rollups. You can send funds to Arbitrum network whenever you want but to withdraw them to Ethereum mainnet you’ll have to wait at least 7 days.

Alright! Let’s now move ETH and tokens to Arbitrum using the Arbitrum Bridge.

Depositing and Withdrawing

Moving Ether and Tokens between Arbitrum and Ethereum using Arbitrum Bridge:

1. Head over to Arbitrum Bridge. Upon visiting this site your Metamask extension will automatically open up. Choose the account where you have ETH and then connect your wallet. Make sure you are connected to Ethereum Mainnet.

2. Once connected the Arbitrum One bridge automatically fetches your ETH and token balance on the Ethereum Mainnet. It’ll display as Layer 1 balance which is on Ethereum Mainnet and Layer 2 balance which is on Arbitrum L2.

3. Select the asset that you want to bridge over.

4. Next input the amount of ETH or token that you want to transfer over to L2 and then click deposit to make a transfer.

Now follow the prompts on Metamask. Authorize the transaction on your MetaMask wallet and wait for the transaction to be confirmed on the blockchain. It should not take more than 10 minutes.

To see your Arbitrum transactions being processed in real time use the Arbitrum One block explorers.

Make sure to switch your Metamask network to Arb1 to see your funds.

Congratulations! Your funds have been moved from Ethereum Mainnet over to the Arbitrum One network.