What is polygon bridge

Crypto for Advanced
> 3 min. read
What is polygon bridge

We know that Polygon is all about cheaper and quicker transactions, as well as connecting the multiple blockchains into one integrated whole. This is the idea of blockchain's internet, and in order for it to operate, assets must be transferred from one network to another. Polygon is an Ethereum-compatible network, which implies it can connect with the mainnet of Ethereum. Many individuals and Dapp developers choose to migrate from Ethereum to Polygon to benefit from quicker and cheaper transactions. There must be a tool, or technology, to enable this. That technology is called Polygon Bridge. With the bridge, users are able to move ERC tokens and NFTs between Polygon and Ethereum networks. Bridges are critical because in order for users to interact with Dapps like Aave, Curve, and SushiSwap, tokens must first be transferred to the Polygon network.

Polygon Bridge is available in two varieties: the Plasma chain and the PoS (proof of stake) chain. Both can bridge assets, but their approaches to security differ. Notably, the Plasma bridge employs slightly stricter security procedures, which can cause withdrawals back to the Ethereum mainnet to take up to seven days. As a result, many people use the Plasma bridge to connect to the Polygon network and subsequently the PoS bridge to exit.

How to use Polygon Bridge

When a token goes across the Polygon Bridge, its supply in circulation remains constant. Tokens leaving the Ethereum network are locked and produced in a 1:1 ratio as Polygon tokens. The tokens are unlocked after they have returned to the Ethereum network, and the Polygon tokens are burnt. As mentioned, there are two types of Polygon Bridges, so let’s check both.

Plasma Bridge

-        After connecting your Metamask wallet to the Polygon wallet, select the 'Switch to Polygon' button. The Polygon network's information will be displayed in the popup of your Metamask plugin.

-        You will be able to migrate from Ethereum's Mainnet to the Polygon Network after your application has been granted. You will also be able to see your MATIC tokens. You may now return to Polygon Bridge and click on withdraw. Repeat the previous steps.

-        There are three transactions that must be validated on the Plasma bridge. The first step is to withdraw funds from your Polygon Wallet. The second step is to initiate a 7-day challenge period during which anybody can question the transaction on Matic. This challenge time is intended to give extra security.

PoS Bridge

-        Connect your crypto wallet, such as Matamask, to the Polygon Web Wallet and authorize it using your sign-in credentials.

-        This will take you to the Polygon Bridge interface, where you may deposit whatever token you choose. MATIC, ETH, ERC20, ERC721, ERC1155, and other tokens are supported by the PoS Bridge.

-        The relevant information will include the estimated time it will take to conduct the transaction as well as the gas cost.

-        To transfer the tokens back, click withdraw and repeat the process. The tokens will be returned to you after a set length of time, as specified in the notes.

-        You can claim the tokens to your crypto wallet once the transaction has been verified.

© 2023 BITmarkets. All rights reserved.
Dark mode
Light mode

🍪 Cookies

We use cookies to store, access and process personal data to give you the best online experience. By clicking Accept Cookies you consent to storing all cookies and ensure best website performance. You can modify cookie preferences or withdraw consent by clicking Cookie Settings. To find out more about cookies and purposes, read our Cookie Policy and Privacy Policy

Cookies settings


Cookie Control


What are cookies?

Cookies are small text files that enable us, and our service provides to uniquely identify your browser or device. Cookies normally work by assigning a unique number to your device and are stored on your browser by the websites that you visit as well as third-party service providers for those website. By the term cookies other technologies as SDKs, pixels and local storage are to be considered.


If Enabled

We may recognize you as a customer which enables customized services, content and advertising, services effectiveness and device recognition for enhanced security
We may improve your experience based on your previous session
We can keep track of your preferences and personalize services
We can improve the performance of Website.


If Disabled

We won't be able to remember your previous sessions, that won't allow us to tailor the website according to your preferences
Some features might not be available and user experience reduced without cookies


Strictly necessary means that essential functions of the Website can not be provided without using them. Because these cookies are essential for the properly working and secure of Website features and services, you cannot opt-out of using these technologies. You can still block them within your browser, but it might cause the disfunction of basic website features.

  • Setting privacy preferences
  • Secure log in
  • Secure connection during the usage of services
  • Filling forms

Analytics and performance tracking technologies to analyze how you use the Website.

  • Most viewed pages
  • Interaction with content
  • Error analysis
  • Testing and Measuring various design effectivity

The Website may use third-party advertising and marketing technologies.

  • Promote our services on other platforms and websites
  • Measure the effectiveness of our campaigns

Manage Cookies


Crypto assets as unregulated, decentralised and highly volatile assets entail substantial risks and you may lose all invested capital.

Check Risk Disclosure for detail risk information.