Credit Card Generator

Free Test Credit Card Generator — Luhn-Valid Numbers for Dev & Testing

For development and testing purposes only. When building e-commerce sites, payment forms, or integrating payment gateways, developers need valid-format credit card numbers to test form validation logic and UI flows without using real card data. This free Credit Card Generator produces syntactically valid test card numbers for Visa, Mastercard, American Express, Discover, and other major card types — all passing Luhn algorithm validation, none linked to any real account.

Select a card type, choose how many numbers to generate, and click Generate. The tool produces card numbers, expiration dates, and CVV codes in realistic formats for use in development environments. All generated numbers are clearly marked as test-only and will be declined by all real payment processors.

Most payment gateways (Stripe, PayPal, Braintree) provide their own official test card numbers for sandbox testing. Always use the official test numbers from your payment provider when testing actual payment processing — use this tool only for testing your form's client-side validation logic.

Card Number Format by Type

Visa. Starts with 4. 16 digits total (13 or 19 digit variants exist). Example test: 4111 1111 1111 1111.

Mastercard. Starts with 51–55 or 2221–2720. 16 digits. Example test: 5500 0000 0000 0004.

American Express. Starts with 34 or 37. 15 digits. CVV is 4 digits (not 3). Example test: 3782 822463 10005.

Discover. Starts with 6011, 622126–622925, 644–649, or 65. 16 digits. Example test: 6011 1111 1111 1117.

Related Tools

• Credit Card Validator – Validate any card number using the Luhn algorithm.
• Password Generator – Generate secure random passwords.

Frequently Asked Questions