The Binance Smart Chain (or BNB Smart Chain) and Polygon are two of the leading and most innovative blockchains in the Decentralized Finance (DeFi) space. BSC provides fast and low-cost transactions and a wide range of decentralized applications while Polygon is known for its scalability and efficiency, hence making it an attractive destination for many DeFi users and developers.
Even though these two blockchains share many similarities, there are still some features unique to each blockchain. For many users and developers looking to access the unique benefits of each network, bridging between BSC and Polygon can provide a solution to this challenge.
If you’re looking for a guide on how to move your crypto assets from the BNB Smart Chain to Polygon, then you’re on the right page.
In this article, we will explore the steps involved when bridging from BSC to Polygon. We will also take a look at some of the best BNB to MATIC bridges as well as how you can easily bridge BNB to Polygon.
How To Bridge From BSC To Polygon (Step By Step Guide)
To move assets from the BNB Smart Chain to Polygon, you need to use a cross-chain crypto bridge that supports bridging tokens from BSC to Polygon and vice versa.
There are a handful of crypto bridges that support bridging across both blockchains but for this guide, we will be using the OpenOcean DEX/DeFi aggregator to bridge from BSC to Polygon.
OpenOcean is a multi-chain exchange that works as a centralized and decentralized exchange aggregator. The platform aggregates liquidity from several centralized and decentralized exchanges thereby allowing users to get the best prices for their trades.
The OpenOcean cross-chain swap feature allows users to move crypto assets across multiple supported blockchains. OpenOcean does this by routing the transaction through multiple cross-chain bridges which they have a partnership with including the Celer cBridge, Multichain bridge, and more.
Below is a step-by-step guide showing how you can bridge from BSC to Polygon using OpenOcean.
Step 1: Switch to the BSC network on your wallet.
Since you will be bridging from BSC to another network (Polygon in this case), you need to first switch the default network on your wallet to the BNB Smart Chain.
To switch to the BSC network on Metamask, launch the extension and click on the network selector box which will be showing the currently selected network.
After that, select “Binance Smart Chain” from the list of available networks on your wallet to set the BNB Smart Chain as the default network on your wallet.
If you couldn’t find the Binance Smart Chain on the list of available networks in your wallet, then you will have to add the BSC network to Metamask.
Step 2: Visit OpenOcean and connect your wallet.
Next, you will need to connect your wallet to OpenOcean to access the platform and all its features.
To connect your Metamask wallet to the platform, visit the OpenOcean website, switch to the BNB Chain, and click [Connect Wallet].
Next, select “Metamask” from the list of compatible wallets and approve the connection on the pop-up Metamask window.
If you don’t use Metamask, then select the correct wallet name from the list of wallets on the dialog and approve the connection on your wallet.
After connecting your wallet to OpenOcean, you should see the default page which is the token swap page. Since you want to bridge crypto and not trade tokens, you need to navigate to the Cross-chain swap page.
To navigate to the cross-chain swap page, hover your mouse pointer on [Trade] then select [Cross Chain] from the sub-menu items.
Step 3: Select the Source and Destination chains.
Next, you will need to select the source and destination chains for the transaction.
Select “BNB Chain” in the From section to set BSC as the source chain then select “Polygon” in the To section to set Polygon as the destination chain for the transaction.
Step 4: Select a token to bridge, enter an amount and approve token spend.
Now you need to select the token to be bridged. You can either bridge from one token to the same token on another network (eg from USDT on BSC to USDT on Polygon) or from one token to a different token (eg from BNB on BSC to MATIC on Polygon).
For this guide, we will be showing you how to bridge BNB to MATIC so we have selected both tokens in the From and To sections respectively as you can see in the screenshot below.
After you must have selected the token to bridge and the token to receive on the destination chain, click [Approve] then approve the token spend on the Metamask pop-up window.
Step 5: Confirm the transaction.
Finally, you would need to confirm the transaction on your crypto wallet.
To confirm the transaction, click [Swap] then click [Approve] on the confirmation dialog.
After approval on the OpenOcean website, you should see a popup Metamask window showing the details of your transaction including the total of tokens to be bridged and the associated gas fees. Click [Confirm] and wait for the bridging process to complete.
Bridging on OpenOcean can take a few minutes to complete and this is because OpenOcean routes each transaction through 2 or more bridges depending on the source and target blockchains so simply keep the OpenOcean tab open until the transaction is done.
When the transaction is complete, go back to your Metamask wallet and switch networks to the Polygon Mainnet to view the tokens you received on your wallet (on Polygon) from the transaction.
The BNB Smart Chain and Polygon are some of the biggest names when it comes to decentralized blockchains with a focus on DeFi. Both blockchains offer a decentralized infrastructure, scalability, user-friendly experience, and low-cost transactions.
To bridge crypto from BSC to Polygon you need to use a crypto bridge that supports bridging from one blockchain to another and vice versa. For bridging from the BNB Chain to Polygon, we recommend using OpenOcean since it is a top CEX and DEX aggregator.
The cross-chain swap feature on OpenOcean allows users to move crypto from any of the supported blockchains to another seamlessly while charging the lowest fees possible.
And that will be it for this guide. If you were looking for the best BNB to MATIC bridge or simply how to move your crypto assets from BSC to Polygon, we hope you found this article helpful.