This repository contains an implementation of credit card fault detection using Luhn's algorithm. Luhn's algorithm is a checksum formula used to validate credit card numbers, as well as other identification numbers. The algorithm is based on performing a set of arithmetic operations on the digits of a given number, resulting in a checksum value.

How to Calculate the Luhn Check Digit in Connect

Luhn Module Verifier

Set of utilities using the Luhn algorithm

Calculates Luhn Mod N check values

An interactive Python tool for validating numbers with the Luhn algorithm, generating check digits, and offering step-by-step explanations. Features include multi-number validation, file saving, and a user-friendly interface with rich, colorful output.

Small application to check input strings using the Luhn algorithm

A simple function that calculates the Luhn checksum for a given number

PHP library to validate digits such as Credit Card Number, IMEI number, etc. with Luhn Algorithm

Luhn algorithm function to check an input validation

A simple luhn checker for learning and my own use.

Validates and GENERATES Luhn control digit of debit and credit cards' numbers