Instantly Verify the Format and Checksum of Any POL Address

Sending cryptocurrency to a wrong address on Polygon results in permanent loss of funds. The POL Address Validator helps you prevent this by verifying the format and EIP-55 checksum of any address before you initiate a transfer.

A valid Polygon address is 42 characters long, starts with "0x", and contains only hexadecimal characters (0–9, a–f). The EIP-55 checksum uses mixed case letters to encode a built-in error-detection mechanism.

PolygonAddressChecker.com

Our validator checks three things: length (exactly 42 characters including the 0x prefix), character set (only valid hex characters), and EIP-55 checksum compliance. A warning is shown for addresses that are structurally valid but do not pass the checksum — these may indicate a manually altered address.

Beyond format checking, the validator also confirms whether the address is active on-chain, meaning it has a non-zero POL balance or a transaction history. A brand-new address with zero activity is still valid but has not yet been used on the network.