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Hazuu Tools

Credit Card Generator

Generate valid test credit card numbers using the Luhn algorithm for Visa, Mastercard, Amex, and more. For development and testing only.

Type: Visa|Length: 16 digits|CVV: 3 digits|Prefix: 4...
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For Testing Purposes Only

These are algorithmically valid test numbers generated using the Luhn algorithm. They are not linked to any real bank account and cannot be used for actual transactions. Use them only for software testing, form validation, and development.

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Click "Generate" to create test card numbers
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About Credit Card Generator

Credit card number validation is a critical part of any e-commerce or payment processing system. During development and QA testing, engineers need realistic test card numbers that pass front-end validation (Luhn algorithm checks, prefix matching, length verification) without using real financial data. This tool generates algorithmically valid numbers for exactly that purpose.

Our Credit Card Generator creates test numbers for Visa, Mastercard, American Express, Discover, JCB, and Diners Club using the industry-standard Luhn algorithm. Every generated number passes checksum validation just like a real card would, but these numbers are not connected to any bank account and cannot process actual transactions. All generation happens entirely in your browser — no data is ever sent to a server.

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How to Use

01

Select Card Type

Choose a card network from the dropdown: Visa, Mastercard, American Express, Discover, JCB, or Diners Club.

02

Configure Options

Set how many cards to generate (1-20) and toggle optional fields like expiry date, CVV, and cardholder name.

03

Generate & Copy

Click "Generate" to create test card numbers, then copy individual entries or all cards at once for use in your test suite.

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Frequently Asked Questions

What is a Credit Card Generator? expand_more
A Credit Card Generator is a development tool that creates mathematically valid test credit card numbers using the Luhn algorithm. These numbers have correct prefixes, lengths, and check digits for each card network, but they are not linked to any real bank account and cannot be used for purchases.
Is it legal to use generated card numbers? expand_more
Yes, generating test card numbers for software testing, form validation, and educational purposes is perfectly legal. These numbers are not real and cannot process transactions. Most payment processors (Stripe, PayPal, etc.) also provide their own test numbers for similar purposes.
What is the Luhn algorithm? expand_more
The Luhn algorithm (also called the modulus 10 algorithm) is a checksum formula used to validate identification numbers such as credit card numbers. It detects accidental errors in data entry by verifying the check digit. Our generator uses this algorithm to produce numbers that pass standard validation checks.
Can these numbers be used for real transactions? expand_more
No, absolutely not. These are randomly generated test numbers that satisfy the Luhn checksum but are not associated with any real financial account. Payment gateways will reject them immediately. They are intended solely for development, testing, and educational use.