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The Polygon Portal is the official trustless two-way bridge between Polygon PoS and Ethereum. It lets you transfer tokens without third-party risk or market liquidity constraints. The bridge is available for both the PoS Amoy testnet and mainnet. Access it at Polygon Portal.
To learn more about the features that Polygon Portal offers, and a series of step-by-step instructions that help you with using the platform, check out the Portal guide.
There is no change to the circulating supply of your token when it crosses the bridge. This is what goes on in the background when you bridge your tokens over to Polygon PoS from Ethereum:
  • When depositing, tokens that leave the Ethereum network are locked and the same number of tokens are minted on Polygon PoS as a pegged token (1:1).
  • When withdrawing tokens back to the Ethereum network, tokens are burned on Polygon PoS and unlocked on Ethereum during the process.

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