Ethereum Address Validator

Understanding Ethereum Addresses & EIP-55 Checksums

An Ethereum address is a hexadecimal number derived from the last 20 bytes of the Keccak-256 hash of the corresponding public key. In its raw form, it is all lowercase and susceptible to typos during transmission or entry.

What is EIP-55?

EIP-55 (Ethereum Improvement Proposal 55) introduces a capitalization-based checksum mechanism to make addresses safer. By rendering specific letters uppercase based on the hash of the address string, wallet software can verify checksums locally to prevent users from sending funds to incorrect addresses due to simple typos.