# Luhn Validator

> Check a card, IMEI or account number against the Luhn mod-10 rule, see the doubling steps and work out a missing check digit.

- URL: https://prismkit.hippodev.app/en/crypto/luhn-validator
- Category: Crypto & Security
- Runs: client-side, no upload

This is an interactive tool — open https://prismkit.hippodev.app/en/crypto/luhn-validator to use it.