How to Bridge from Optimism to Arbitrum
As mentioned above, the best way to move assets between Optimism and Arbitrum is through a secure cross-chain DEX like Across. Their platform allows you to bridge ETH, WETH, WBTC, USDC, ACX (native token) and DAI between all layer 2 blockchains on Ethereum. They are the most popular cross-chain DEX for L2s by 24 hour volume and daily users.
You can get started in 4 steps with this simple guide:
- Visit the Across Protocol and connect your Wallet.
- Select Optimism as your current chain and Arbitrum as your destination chain.
- Select the token and amount you want to bridge to Arbitrum.
- Review your transaction and confirm it to finalize. The funds will arrive on Arbitrum in under 5 minutes.
Fees to Bridge from Optimism to Arbitrum
The fees to bridge between Optimism and Arbitrum via Across Protocol are cheap and generally costs under $10 regardless of the token amount you transfer. This is because Optimism and Arbitrum are both layer 2 optimistic rollups which enable cheap transactions and high scalability. If you are interested in the differences between platforms, you can read our Optimism vs Arbitrum guide.
About Across Protocol
Across Protocol is a secure and reliable cross-chain DEX for Ethereum layer 2 platforms. They are the most popular bridge for Optimism, Arbitrum, Polygon, Boba, xDai and other L2s on Ethereum. Their platform allows you to transfer ETH, WETH, WBTC, USDC and many ERC20 tokens between all layer 2 blockchains on Ethereum. To get started, visit their website and connect your wallet of choice. It’s easy to use and requires no KYC or sign up process.