how a swap works with no wallet connect

You do not register. You do not connect a wallet. You do not pass any identity check. You send one asset to an address the page gives you, and the exchanger sends a different asset back to a receiving address you supply.

That is the entire mechanism, front to back. The rest is detail about what happens between those two transfers, what the exchanger knows about you, and what breaks if something goes wrong.

The basic sequence

You select the asset you want to spend and the asset you want to receive. The page computes an exchange rate and a network fee estimate, then displays a deposit address. It also asks for a refund address and a destination address. The destination address is where the output will land. The refund address is where the output goes if the exchange itself fails after your deposit is confirmed.

You send your funds to the deposit address. The exchanger watches for the transaction to reach a minimum number of block confirmations - how many depends on the network. Once confirmed, the exchanger locks the rate that was shown when you started. It then sends the output to your destination address.

You do not need to keep the browser open. The exchange happens on the server side after the deposit is confirmed. What happens to your swap if you close the browser mid-transaction is that the exchange completes normally, as long as the deposit arrives. Closing the window does not cancel anything. What you lose is the ability to see status updates unless you saved the order ID or the deposit address.

What the exchanger sees

What does a swap site see when you trade without logging in is the deposit address, the destination address, the refund address, the amount, the asset type, and your IP address at the moment the order was created. That is all. No name, no email, no wallet connection that could leak your full portfolio. The site does not know what other addresses you control. It only sees the address that sent the deposit, which may be a different address than the one where you receive the output. That separation is the entire point.

The IP address is logged by any server that handles orders. You can mitigate this with a VPN or Tor, but the site does not require either. The deposit and destination addresses are recorded permanently in the blockchain. The exchanger knows which deposit address belongs to which order, but anyone can see the public blockchain. The privacy gain is that the deposit address and the destination address are not obviously linked except by the exchanger's internal database.

What "non-custodial" means here

What is the difference between a custodial and non-custodial swap is straightforward. In a custodial swap, you send funds to an exchange that holds them in its own wallet and credits your account. You must withdraw later. In a non-custodial swap, the exchanger never holds your funds beyond the time needed to execute the trade. It generates a new deposit address per order, sweeps the funds, executes the trade on a connected exchange or a liquidity pool, then forwards the output to your destination address. The exchanger becomes a temporary custodian only during the trade window - usually a few minutes. It does not hold your coins in a user account.

This page uses a non-custodial model. The deposit address is generated per order and discarded after the trade completes. No account is created. No balance is stored.

When the asset is obscure

A token that only exists on a small decentralized exchange or a custom blockchain may not have direct liquidity. How to swap a token that is not listed on any major exchange requires the site to route through a decentralized exchange that does list it. The exchanger typically works by receiving the deposit, then swapping it on a DEX that supports the pair, then sending the output. If the token is so obscure that no DEX has a pool, the swap cannot complete. The site will not accept that token. The deposit address will not be generated.

If a token is accepted but the liquidity pool runs dry during your trade, the rate may slip. The exchanger will show you a rate at the start, but that rate is not locked until the deposit is confirmed. If slippage exceeds what the exchanger considers viable, it can reject the trade and refund you, minus network fees. The refund address is what ensures you get something back.

The refund address - why it exists and how to set it

Why a swap asks for a refund address and how to set one safely is a practical answer to a failure mode. If the deposit arrives but the output cannot be sent - because the destination address is invalid, the asset type is wrong, the liquidity is insufficient, or the output network is congested - the exchanger must return the deposit. It cannot return it to the same address if that address is a temporary deposit address that no longer exists. The refund address is the fallback.

Set the refund address to an address you control completely. Do not set it to an exchange deposit address, especially if you are swapping into a token that the exchange lists under a different contract. If the refund address is wrong, the refund goes to a black hole. The site cannot recover it. You cannot recover it.

If you do not provide a refund address, some sites will refuse the order. This page requires one. It is not optional.

Hardware wallets and no-account swaps

hardware-wallet/">How to swap tokens directly from a hardware wallet is possible because the deposit address is a standard blockchain address. You can send from any wallet, hardware or software. The destination address is also a standard address. If you want the output to land in your hardware wallet, you paste the hardware wallet address into the destination field. The same applies to the refund address - paste your hardware wallet address.

No wallet connection is needed at either end. The hardware wallet never signs any transaction except the one you initiate from it. The exchanger never touches your private keys. The risk is that you might paste a wrong address. Double-check both the deposit address (where you send) and the destination address (where the output goes). A wrong destination address is irreversible.

Trust - what to check before you send

How to check if a no-account swap site is trustworthy before you send funds comes down to a few verifiable facts that do not require trusting any claim.

First, check that the site enforces HTTPS and that the domain is not a typo-squat of a known site. Look up the domain registration date. A site that has existed for years is not automatically trustworthy, but a site that was registered last week is a stronger signal to pause.

Second, test a small amount first. Every no-account swap allows this. Send the minimum the site accepts. If the output arrives as expected, the mechanism works.

Third, check the refund policy. A legitimate site will explain how refunds work and what fees are deducted. If the site has no refund policy at all, or if the refund address is described as optional when it is actually mandatory for recovery, that is a red flag.

Fourth, read the site's own documentation about what it logs. If it claims to log nothing, that is false - servers always log IPs and times. The question is how long they keep them and whether they sell or share them. A site that says "we log IPs for fraud prevention and delete them after 30 days" is more credible than one that says "we never log anything."

Fifth, look for a public statement about which crypto swaps never ask for identity verification. Many sites say they do not ask, but then demand KYC after a certain volume. This page does not ask at any volume, because there is no account. That never changes.

What can go wrong and cannot be undone

You can send to the wrong deposit address. The site shows you one address per order. If you send to an address from a previous order that you reused, the funds may go to a different order or to an address that no longer belongs to the exchanger. In either case, the funds are lost.

You can set a wrong destination address. The exchanger will send the output to whatever address you entered. If that address is a misspelling, the transaction goes through on the blockchain. There is no reversal.

You can be caught by network congestion. If the deposit is slow to confirm, the rate may shift. The site locks the rate only after the deposit confirms. If you sent with a low fee and the chain is busy, the rate may have moved against you by the time the deposit confirms. The exchanger may still execute at the original rate if the slippage is within its tolerance, or it may offer a revised rate. If the revised rate is worse, you can accept or request a refund. You choose before the output is sent.

You can be caught by an invalid token contract. If the exchanger says it supports a token but uses a different contract than the one you hold, your deposit may be sent to an address that only recognizes a different standard. The exchanger will see an unrecognized asset and may not process it. The refund process then depends on whether the exchanger can manually identify and return the deposit. Some can, some cannot. Check the token contract list before sending.

The honest answer is that no-account swaps remove the trust requirement for identities but shift risk onto the user's ability to check addresses and contract details. That is the trade. If you want a safety net, do not use a no-account swap. If you want the speed and privacy, verify everything before you send. The blockchain has no undo button.