Repository Index

:credit_card: ruby gem for validating credit cards, generating credit card numbers, Luhn checks

• credit-card
• validation
• e-commerce
• rails

Provide check digit algorithms and calculators written in Go

• checkdigit
• luhn
• damm
• verhoeff

iOS validation framework with form validation support

• validation
• validator
• form
• validation-library

Luhn algorithm in Elixir