How to Swap Crypto
Learn the different ways to swap cryptocurrency, when to use each method, and how to choose the right one for your assets.
Quick Takeaways
- A crypto swap exchanges one asset for another, on the same chain or across chains.
- Start by deciding who holds the keys: a custodial exchange, or your own wallet.
- In self-custody, the right method depends on what you’re trying to accomplish and how each route works.
- Before you send, confirm the destination network, address, and quote details.
What Is a Crypto Swap?
A crypto swap is the exchange of one cryptocurrency for another.
Think of it like exchanging US dollars for Canadian dollars before travelling. You start with one currency and receive another, usually through a bank or foreign exchange service.
Crypto works in a similar way. Instead of exchanging fiat currencies, you’re exchanging digital assets like Bitcoin, Ethereum, or USDC. Depending on the assets and networks involved, you might use:
- A centralized exchange (CEX), where a company manages your account and holds your assets while you trade.
- A decentralized exchange (DEX), where you keep control of your wallet and execute the swap yourself without depositing your funds into an exchange account.
| You have | You want | Pair Example |
|---|---|---|
| BTC on Bitcoin | ETH on Ethereum | BTC → ETH |
| ETH on Ethereum |  USDC on Ethereum | ETH → USDC |
| ETH on Ethereum |  ETH on Arbitrum | ETH → ETH (Arbitrum) |
The sections below explain when each approach is the better choice.
Ways to swap crypto across blockchains
There is no single “best” way to swap crypto across blockchains.
The right path depends on:
- Who you are — whether an exchange holds your funds, or you keep them in your own wallet
- What you own — the asset and network you start with
- What you want to receive — a different token, or the same asset on another chain
Start with those three answers. The method choice gets much clearer.
Custodial vs. Self-Custody
Before choosing how to swap, decide who will control the assets during the process. Bob uses a custodial exchange, while Alice keeps control of her own wallet.
Bob
Custodial user
Uses a centralized exchange that holds the assets during the swap.
What this means
- Platform manages it
- Recovery may be offered
- KYC commonly required
Alice
Self-custody user
Keeps crypto in her own wallet and chooses how to complete the swap.
What this means
- Controls her funds
- No exchange account
- Verifies every detail
Using a custodial exchange
If you prefer convenience and don’t mind using an exchange account, swapping inside a centralized exchange is usually enough. Platforms like Coinbase, Kraken, and Binance are common starting points, though availability, fees, and supported pairs depend on your jurisdiction.
For that path, use the exchange’s own buy/sell or convert tools, then withdraw only when you need assets in a personal wallet.
Self-custody methods
| Aspect | Bridge | Native Cross-Chain Swap |
|---|---|---|
| What it does | Transfers assets between supported blockchains. | Exchanges one supported asset directly for another across blockchains. |
| How it works | Depending on the protocol, the route may use bridge infrastructure or intermediate asset representations. | Protocols such as THORChain and Chainflip coordinate the exchange as a single cross-chain swap. |
| What to expect | Some workflows require an additional swap after bridging to reach your desired asset. | allblu connects to the Chainflip protocol, which uses Just-in-Time liquidity to execute supported native cross-chain swaps. |
Both approaches are legitimate ways to move value across blockchains. The right choice depends on your goals, the supported assets, fees, estimated completion time, and how the route executes the transaction.
Why choose allblu?
allblu is built for self-custody cross-chain swaps. No account required. Swap from your own wallet, with no KYC. You get an upfront quote, send from your wallet, and receive on the destination network.
Native settlement
Receive native assets on the network you choose. No bridges or wrapped tokens.
Upfront quotes
Choose your pair and see your quote before you send.
Non-custodial
Your funds are never held by allblu. Swaps settle directly onchain.
Before you swap
Use this checklist to avoid the mistakes that most often cause lost or delayed funds across any swap path, not only allblu.
-
Destination wallet and network
Confirm the receive address belongs to the correct chain and the wallet you control.
-
Quote details
Check amount out, fees, and estimated timing before you send anything.
-
Deposit asset and amount
Send only the asset and amount shown for this swap. Do not reuse an old deposit address.
-
Network when you send
Broadcast the deposit on the network the quote expects. Wrong-network sends are a common cause of lost funds.
Now that you understand how crypto swaps work, you’re ready to make your first native cross-chain swap with confidence. Practice the process with allblu’s interactive walkthrough before requesting a live quote.