Validate any Ethereum address instantly. Checks format, length, and checksum. 100% offline — no data sent to servers.
Ethereum addresses are 42 characters long, starting with 0x followed by 40 hexadecimal characters.
Checksummed addresses use mixed case (e.g., 0xABC...) to detect typos. Not all addresses have checksums.
This tool runs entirely in your browser. No address is ever sent to any server.