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Credit Card Generator

Generate valid test credit card numbers for development and testing purposes. Creates realistic fake card numbers that pass Luhn algorithm validation.

For Testing Purposes Only

These card numbers are fake and for development/testing only. Using fake cards for fraud is illegal.

đź’ˇ How to Use This Tool

Generate valid test credit card numbers for your development and testing needs. Follow these simple steps:

1

Select Card Network

Choose from Visa, Mastercard, American Express, Discover, or JCB.

2

Choose Quantity

Select how many test cards you need (1-50).

3

Configure Options

Toggle expiry date and CVV generation as needed.

4

Generate & Copy

Click generate and copy individual cards or all at once.

đź“– About Credit Card Generator

What is a Credit Card Generator?

A credit card generator is a tool that creates mathematically valid test credit card numbers for software development, testing, and educational purposes. These generated numbers follow the industry-standard Luhn algorithm and match the format of real card numbers, but they are not connected to any actual bank accounts.

How the Luhn Algorithm Works

The Luhn algorithm (also known as the modulus 10 algorithm) is a checksum formula used to validate credit card numbers. Here's how it works:

  1. Starting from the rightmost digit, double every second digit
  2. If doubling results in a number greater than 9, subtract 9
  3. Sum all the digits
  4. If the total modulo 10 equals 0, the number is valid

Common Use Cases

  • Software Development: Test payment form validation without using real card data
  • E-commerce Testing: Validate checkout flows and payment integrations
  • Educational Purposes: Learn about payment card industry standards
  • UI/UX Design: Create realistic mockups with sample data
  • QA Testing: Test error handling and edge cases in payment systems

Card Network Prefixes

Network Prefix Length
Visa 4 16
Mastercard 51-55 16
American Express 34, 37 15
Discover 6011 16
JCB 35 16

Privacy & Security

This generator runs entirely in your browser using JavaScript. No data is sent to any server. The generated card numbers are purely random and mathematical—they cannot be used for actual transactions.

Important Disclaimer

These generated numbers are for testing and development purposes only. They are not real credit card numbers and cannot be used for actual purchases or fraudulent activities. Using fake card numbers for fraud is illegal.

âť“ Frequently Asked Questions

No! These are randomly generated test numbers that pass the Luhn algorithm validation. They are not connected to any real bank accounts and cannot be used for actual transactions.
The Luhn algorithm (also called the modulus 10 algorithm) is a checksum formula used to validate identification numbers, including credit card numbers. It helps detect accidental errors in data entry.
Yes! Using fake credit card numbers for legitimate testing and development purposes is completely legal. However, using any fake card numbers for fraud or actual purchases is illegal.
Yes! These generated numbers are perfect for testing form validation, checkout flows, and payment integration in development environments. They will pass basic validation checks but will be rejected by actual payment processors.
Absolutely! All card generation happens locally in your browser using JavaScript. No data is sent to any server or stored anywhere.