Our focus with LeoDex has been on building the best UI/UX for cross-chain swaps.
The mission? Deliver on the promise that DEX > CEX.
We feel that the industry has lacked good UX development. DEXes are amazing, but honestly, they need quite a lot of work to catch up to the user-friendliness and deep liquidity of CEXes.
With LeoDex, we aim to change that. Our focus is on building the best experience for users that we possibly can — while delivering the lowest fees in the industry.
LeoDex.io is proud to say that we have best-in-class UX synergistically combined with the industry's lowest swapping fees.
When you do THORChain swaps, we want you to think of LeoDex as being the best and cheapest option available.
The Wallet Problem: Why Users Still Choose CEX
One of the critical reasons average users still choose CEXes over DEXes is the disconnect that happens (pun intended) when it comes to wallet compatibility and general user-friendliness.
Today, we’re excited to unveil what we believe is a massive leap forward in User Experience that solves the wallet problem — because you can use any wallet that can send crypto to perform these swaps.
Now, the floodgates to THORChain swapping volume are open in a way they have never been before.
Introducing Instant Swap.
Instant Swap: Powered by THORChain Memoless Transactions
Instant Swaps allow users to swap on THORChain using LeoDex.io — with no wallet connected.
LeoDex is the first and currently only interface that has introduced this swapping capability, and we have dubbed them “Instant Swaps.”
👉 Instant Swaps are LIVE. Try them now on LeoDex.io!
How It Works
Instant Swaps on THORChain via LeoDex use a new protocol-level feature called Memoless Transactions.
In November 2025, THORChain released an update that enabled Memoless Transactions on the protocol.
Memoless Transactions enable interfaces (like LeoDex!) to predefine the memo for a swap. “Memos” are used to instruct THORChain’s protocol on what to do with your assets (swap them for another asset, pool them, etc.).
Instant Swaps on LeoDex utilize Memoless Transactions by:
- Allowing you to go to leodex.io and fill out a swap (e.g., 10 ETH → 1 BTC).
- LeoDex writes the memo for you and tells it to THORChain while attaching a Reference ID to your swap.
- You send your swap to the proper THORChain Address with the corresponding Reference ID.
- Your swap is processed and sent to your chosen recipient address (set by you when starting your swap).
How to Do an Instant Swap on THORChain
- Go to LeoDex.io.
Select any supported asset (listed below).
As of right now, most native assets are supported, and THORChain is working to integrate more assets like ERC20s. When those are available for memoless TXs, LeoDex will automatically support them for instant swaps.
- Click “Instant Swap” (next to the Connect Wallet button).
You do not need a connected wallet to do an instant swap!
Just click the button and enter your destination address (your receiving wallet).
Enter Your Destination Address and click “Create Deposit Address.”
- Ensure you've accurately set your destination address (your receiving wallet for the BTC in this example).
- Setting the wrong address will lead to a loss of funds.
- LeoDex will then direct THORChain to generate your Deposit Address.
Send ETH (or chosen swap asset).
After the Deposit Address is generated by THORChain, you’ll be shown:- An Amount
- A QR Code
- A Deposit Address
You can now send ETH (or your chosen asset) to this deposit address using any Ethereum wallet.
⚠️ Important: Memoless Transactions require an exact amount.
If it asks for 10.00000088 ETH, sending 10.00000087 ETH could result in a refund or, worst case, loss of funds.
Ensure your amount and deposit address are 100% accurate.
- Instant Swaps Are… Instant.
After sending your swap, the LeoDex page will update almost instantaneously with a Success message — indicating that your asset has been received and is now being processed.
- The success message happens within seconds.
- The THORChain swap itself depends on network queue and swap size — usually a few seconds to a few minutes
Congratulations! You just swapped crypto with no wallet connected.
Instant Swap Supported Assets
As of November 2025, Instant Swap supports the following assets:
- BTC
- ETH
- BCH
- BNB (BSC)
- DOGE
- LTC
- AVAX
- XRP
- ATOM
- TRON (TRX)
- ETH (Base)
More will be integrated by THORChain’s Memoless TXs — and therefore autonomously supported by LeoDex’s Instant Swap feature in the coming weeks and months.
"If You Can Send It, You Can Swap It." - Khal
Try your first Instant Swap using ANY Wallet -> https://leodex.io.