Bridge from Optimism to Arbitrum
Move USDC, ETH, USDT from Optimism to Arbitrum at the best available rate.
Typical time — usually well under a couple of minutes on a liquidity bridge, though network congestion or a manual confirmation step can stretch it a little longer.
Quotes include a 0.5% service fee that supports Bridgeline. Swaps execute through LI.FI’s audited smart contracts — this site never holds your funds.
Four steps, all signed in your own wallet.
- 01
Connect your wallet
Connect inside the bridge box. That's the only place Bridgeline ever asks — this site never sees your keys.
- 02
Pick your token and amount
Choose what you're moving, from which chain to which chain, and how much.
- 03
Review the quote and fee
You approve the exact amount in your own wallet, with the full fee shown. Cancel any time before you sign.
- 04
Confirm and track
Sign the transaction and watch it settle on-chain through LI.FI's audited contracts. Bridgeline is never in the middle.
Bridging Optimism to Arbitrum
Moving from OP Mainnet to Arbitrum One stays cheap the whole way across: a bridge deposit on Optimism usually costs a few cents in ETH, confirmed against roughly 2-second blocks. Arbitrum One settles the other side even faster, with transactions that typically finalize in under a second and also run a few cents. Because both are optimistic rollups anchored to Ethereum, the hop itself rarely costs enough to weigh against whatever you're going to Arbitrum to do.
People usually make this move to trade, not to park funds. Optimism is where you sit if you're close to Velodrome's markets or the retroactive public-goods funding culture that grew up around OP, but it tends to run a thinner derivatives scene. Arbitrum One draws the opposite crowd: it hosts one of the larger on-chain perpetuals ecosystems, built around venues like GMX, alongside deep spot books on the likes of Uniswap. So the typical reason to cross in this direction is reach rather than savings — you're leaving an ecosystem shaped by public-goods experiments to plug into the more active perps and liquidity venues on the other L2. Both chains stay inexpensive and quick, which means the real decision is simply about where the market you want actually lives.
Optimism
Source- Gas
- Typically a few cents per swap.
- Speed
- About 2-second blocks; an OP-Stack rollup settling to Ethereum.
- Ecosystem
- Anchor of the Superchain; home to Velodrome and retroactive public-goods funding.
Arbitrum
Destination- Gas
- Usually a few cents per swap.
- Speed
- Sub-second confirmations; optimistic-rollup settlement to Ethereum.
- Ecosystem
- The deepest DeFi liquidity of any L2 — perpetuals, GMX, and major DEXs.
Stay safe while bridging
- Approve only what you’re bridging. The widget requests finite token approvals by default — there’s no need to grant an unlimited allowance.
- Check the URL every time. Bookmark this site and confirm the address bar before connecting a wallet.
- Start small for a new route. A tiny test transfer confirms everything works before you move the full amount.
Moving a large amount? Consider a hardware wallet
A hardware wallet keeps your private keys offline, so a compromised browser or a malicious approval can’t drain your funds on its own. It’s the single biggest security upgrade for anyone holding meaningful value on-chain.
Official links, provided for your security.
Questions about Optimism → Arbitrum
I'm already on a low-fee L2 — what does Arbitrum add?
The usual pull is markets, not cost. Arbitrum One has historically been one of the busier homes for on-chain perpetuals and derivatives, with venues such as GMX, and it tends to carry deep spot liquidity across major pairs. If you're moving to open leveraged positions or want tighter fills on larger trades, that depth is typically the reason people cross from Optimism rather than any saving on gas.
Will I have gas to transact once funds land on Arbitrum?
If you bridge ETH, you'll arrive holding the same asset Arbitrum uses for gas, so you can act right away. If you only move a stablecoin like USDC, it's worth keeping a small amount of ETH on the Arbitrum side beforehand, or picking a route that delivers a little destination gas, since you'll still need ETH to sign your first transaction there.
Why not just use Optimism's official bridge?
You can, but the canonical path withdraws down to Ethereum L1 and back up into Arbitrum, and optimistic rollups apply a challenge window that can hold a native withdrawal for roughly a week. A liquidity bridge sidesteps that by paying you out of a pool already sitting on Arbitrum, which is why these routes usually complete in minutes rather than days.
Which version of USDC will I receive on Arbitrum?
It depends on the route. Both chains now support native Circle-issued USDC, but some bridges still deliver bridged USDC.e on Arbitrum, which sits at a different contract address. If you plan to use a protocol that expects native USDC, check the bridge's stated output token before confirming so you don't have to swap again on arrival.
What will the move actually cost me?
Two small pieces: gas to submit the deposit on Optimism, typically a few cents in ETH, and whatever spread or fee the bridge itself takes, which is usually modest on a well-supplied route. As of publication neither side charges mainnet-style fees, so on most transfers the total stays minor relative to the amount you're moving.
What's worth double-checking before I confirm?
Confirm the source is set to Optimism and the destination to Arbitrum One, since it's easy to leave a dropdown on the wrong chain. Connect or paste the receiving address yourself rather than trusting a pre-filled field, and if it's your first time on a given bridge, sending a small test amount first is a reasonable way to confirm the path before you move the rest.