Arbitrum Bridge vs Linea Bridge: Which Route Fits? (2026)

Both services are canonical bridges, but each serves a different Ethereum Layer 2. Arbitrum Bridge moves ETH and ERC-20 tokens between Ethereum mainnet and Arbitrum in both directions. Linea Bridge’s native route connects Ethereum and Linea. If your destination is Arbitrum, Linea’s native bridge is not a substitute, and vice versa.

Linea offers more than its native route: an aggregator for transfers from other chains, transfers from centralized exchanges, and crypto purchases using different payment methods. These options make it a broader funding hub, though the aggregator and third-party services have their own fees, terms and counterparties. Arbitrum Bridge is more focused on direct L1/L2 transfers and is accessed through the Arbitrum Portal, which also links to ecosystem resources.

Linea’s homepage labels its native Ethereum bridge as having no fees. That does not mean a transfer has no cost at all: Ethereum gas is not covered by that statement. Fees for Linea’s aggregator, exchange transfers and buy option are not published; check the relevant quote or checkout before confirming.

Arbitrum Bridge’s fee levels are not published. Its transfer costs normally involve Ethereum gas on the originating or settlement side and a small fee on Arbitrum, but the bridge does not publish a fee schedule. No separate protocol fee is claimed. Compare the amount shown in your wallet before signing, and do not treat the no-fee label on Linea’s native bridge as a promise that every route or transaction is cost-free.

Arbitrum Bridge has two audits listed, but the auditors and their findings are not published. Linea Bridge has no audits listed for this entry, and the project does not describe audit reports. Linea’s site does link to a bug bounty and a security section; those links do not replace details about audit scope or results.

Both bridges involve smart-contract and network risks. Arbitrum’s contracts hold substantial value, making them an attractive target, while Linea also depends on its contracts and network. Each native route is described as non-custodial in the sense that users interact through their own wallets. Linea’s aggregator, exchange and purchase options bring third parties into the process, with their own custody arrangements and terms. Verify the official site address and transaction details before connecting or signing.

The reported TVL is about $3.47 billion for Arbitrum Bridge and about $224.9 million for Linea Bridge. That makes Arbitrum the larger bridge by this measure, but TVL alone does not establish that a bridge is safer or better for a particular transfer. Arbitrum lists ARB, although its role is not published. Linea has no token listed here.

Withdrawal timing is another practical difference. Arbitrum withdrawals to Ethereum follow the rollup challenge period and are not instant. Linea’s withdrawal times are not published, so do not assume they match Arbitrum’s or are faster. If timing matters, check the bridge’s current estimate before starting a transfer. For either service, choose based on the network you need to reach and the specific route’s current quote and conditions.

Choose Arbitrum Bridge if you need to move ETH or ERC-20 tokens between Ethereum and Arbitrum and prefer that network’s canonical route. Its higher TVL and two listed audits may be useful context, but audit details and fees are not published, so neither should be treated as a guarantee.

Choose Linea Bridge if Linea is your destination and you want several funding paths in one place. Its native bridge is labeled no-fee, while an aggregator, exchange transfers and fiat purchases add options beyond the direct Ethereum route. Those additional services have separate terms and may charge fees. If you need a bridge between chains other than Ethereum and the destination rollup, Linea’s aggregator may be relevant; check its quote and counterparties before proceeding.