arbswap on Arbitrum One and Nova: how swaps work

Arbswap lets users swap tokens on Arbitrum One or Nova by connecting a wallet, choosing a network and signing a transaction; the search phrase arbswap covers two distinct chains. Arbitrum One is a rollup, while Nova uses AnyTrust for data availability, so assets and balances on one are not automatically available on the other.

How do you make a swap on arbswap?

Start with the network that holds the token you want to trade. The arbswap interface is where you select the pair and amount, then review the quoted output before your wallet submits the transaction.

The basic sequence is:

• Connect a wallet that supports the selected Arbitrum network.
• Choose the input and output tokens, then enter an amount.
• Review the expected output and any minimum-output or slippage setting shown.
• Approve the token if prompted, then review and sign the swap in your wallet.

An approval gives a contract permission to use a token. It may require a separate transaction and gas. ETH on the selected network pays transaction fees, so ETH held on One does not cover a Nova transaction.

What changes between Arbitrum One and Nova?

The network determines which balances and liquidity pools the swap can use. Arbswap describes support for both chains and advertises cross-chain swaps between them through Symbiosis, but a cross-chain route has different steps from a swap within one network.

For a same-chain swap, tokens go through available liquidity pools on that chain. A cross-chain route also has to move value between networks, so check the route, estimated output and destination network before signing. Do not assume that selecting a token with the same ticker means it is the same token on both chains.

What should you check before signing?

Confirm the wallet network, token identity and amount. Check the quoted output against the amount you expect to receive; price impact and slippage can make the final result differ from the initial quote.

What remains open at any given moment is which token pairs, pools and cross-chain routes are available, along with their fees and liquidity. These can change. For most users, the simpler choice is a same-chain swap when the desired token and sufficient liquidity are already on that network. Use a cross-chain route only after checking its destination and full quote.