A C# library for validating and generating credit card numbers.

Provide check digit algorithms and calculators written in Go

Generation and verification of card numbers using Luhn's algorithm.

A Java library for generating mathematically-valid credit card numbers for software testing. The API provides customizable criteria for generation, and is extensible to apply to any payment card type which uses Luhn validation (not limited to just credit cards).

A .net library to identify credit card number and cvv

🔒 An easy-to-use check digit library for data validation

This Python code scrapes Google search results then applies sentiment analysis, generates text summaries, and ranks keywords.

Minimal, zero-dependency implementation of the Luhn Algorithm for PHP.

Fake credit card generator and validator. This is only meant for educational purpose.

Simple validator for identification numbers based on the Luhn algorithm

PHP implementation of the Luhn algorithm.

A better and safer way to display your primary keys in urls or in your app

Helper classes to calculate and validate ckecksums.

Luhn (Modulo 10 or mod 10 algorithm) for PHP

A small guide on credit card security, and ways hackers exploit them

A full TypeScript EAN, UPC, IMEI, EID, ISBN & card validation tool

Pragmatic data validation

Fastest JavaScript implementation of the Luhn algorithm

Credit Card Checker And Generator Using Luhn Algorithm

Contains helper classes that I find useful every now and then.