An Arbitrum Swap starts with the right network, a connected wallet, the chosen token pair, and a careful quote review. The user may need to approve an ERC-20 token before signing the actual swap, then confirm the outcome on a block explorer.
Set up the wallet and review the quote
Use Arbitrum One—not Ethereum Mainnet, Arbitrum Nova, or Arbitrum Sepolia. The same wallet address can show different balances on different EVM networks. Arbitrum One uses chain ID 42161, ETH for gas, and Arbiscan as its standard explorer, as listed in the Arbitrum Foundation wallet instructions.
Keep the token you intend to sell on Arbitrum One and leave enough ETH for network fees. If ETH is the input asset, do not use the entire balance. Never provide a seed phrase or private key to a swap page.
A decentralized exchange lets users exchange tokens through an on-chain application; see the DEX definition from Ethereum.org. The Arbitrum Swap interface presents the process as a quote flow: connect the intended wallet, select input and output tokens, enter an amount, and inspect the transaction details.
Before continuing, check the token symbols, balances, expected output, minimum received, slippage tolerance, price impact, and network fee. Slippage is the permitted difference between the quoted and executed rate. A large price impact, unusually wide slippage setting, or unexpected fee is a reason to pause and recheck the pair.
Approve, sign, and verify the result
Many ERC-20 swaps require two separate wallet actions. The approval permits the swap contract to spend the selected token; the later transaction performs the exchange. Native ETH does not use the same approval step.
Confirm the sell token, receive token, and amount. If prompted, approve the input token, wait for that transaction to finish, then submit the swap. Review the wallet request again before signing. Contract details, network, token, and amount should all match what you intended.
After signing, save the transaction hash and check it in the explorer. It will show whether the transaction is pending, successful, or reverted. A successful transaction means the blockchain accepted the swap; if the new token is not immediately visible, refresh the wallet or add the token manually. The explorer’s token-transfer record is the clearest confirmation that the output reached the connected address.
If a transaction is pending, avoid submitting repeated swaps until it resolves. If it reverted, the input assets normally remain in the wallet, though the network fee may still be charged. A swap exchanges assets already on the selected network; bridging from Ethereum is a separate transaction.