// tools / eth.validate

Ethereum Address Validator

Check Ethereum address syntax and mixed-case EIP-55 checksums, or format an address supplied without checksum casing. No ads, no tracking, no account — everything runs in your browser and never touches a server.

This checks the address format, not the recipient’s identity, activity, or safety.

Ethereum Address

The address is validated live as you type.

How to use

•Paste your Ethereum address in the input field
•Syntax and any supplied mixed-case checksum are checked automatically
•Get the properly formatted address with EIP-55 checksum
•Copy the formatted result using the "Copy to Clipboard" button

About EIP-55 checksum

EIP-55 introduces a checksum for Ethereum addresses by capitalizing specific letters based on the address hash. This helps prevent errors when copying addresses and provides a way to verify address integrity without requiring additional data.