Credit Card Generator

Finance

Generate valid test credit card numbers with CVV and expiry dates for Visa, Mastercard, American Express, and Discover. Perfect for testing payment gateways and checkout flows.

Configuration

Visa
4806 5235 9527 5842
Card Holder
JENNIFER GARCIA
Expires
01/2027

Card Details

Card Number
4806 5235 9527 5842
CVV/CVC
308
Expiration
01/2027
Type
Visa

API Access

Generate this data programmatically with our free REST API. View full documentation →

GET/api/v1/credit-card
Generate valid credit card numbers with CVV and expiry dates. Cards pass Luhn validation.
Parameters
count(number)Number of cards (1-100)Default: 1
type(string)visa, mastercard, amex, discover
Example
curl "https://gentools.io/api/v1/credit-card?type=visa&count=5"

What is This Tool?

A credit card generator creates valid test card numbers that pass the Luhn algorithm checksum. These numbers follow real card network formats (Visa, Mastercard, Amex, Discover) including correct prefixes, lengths, and check digits. They are specifically designed for testing e-commerce checkout flows, payment gateway integrations, and form validation — never for fraudulent use.

Real payment processors like Stripe, Braintree, and PayPal provide specific test card numbers for sandbox environments. This tool generates additional valid-format numbers for stress testing, load testing, and populating test databases with diverse card data.

Common Use Cases

Payment Integration Testing

Test Stripe, PayPal, Braintree, and other payment gateway integrations with properly formatted card numbers that pass client-side validation.

E-commerce QA

Validate shopping cart checkout flows, error handling, and form validation with a variety of card types and formats.

Load & Stress Testing

Generate thousands of unique test card numbers for performance testing payment processing systems under high transaction volumes.

Mobile App Testing

Test card scanning, input masking, and card type detection in iOS and Android payment SDKs.

Frequently Asked Questions

Can I use these cards to make real purchases?

No. Generated card numbers pass format validation (Luhn check) but are not linked to any real accounts. Payment processors will decline them in production mode.

What is the Luhn algorithm?

The Luhn algorithm (MOD 10) is a checksum formula used to validate credit card numbers, IMEI numbers, and other identification sequences. It catches single-digit errors and most transposition errors.

Do you generate CVV and expiry dates?

Yes. Each generated card includes a random CVV (3 digits for Visa/MC, 4 for Amex) and a future expiry date, making them complete for form testing.