Credit Card Number Generator

Credit card test numbers mimic real payment card structures without referencing live accounts. They match issuer identifiers, required lengths, and the Luhn checksum so automated systems treat them as valid inputs during development and quality control.

This tool assembles candidate numbers entirely in your browser through a lightweight reactive interface. Select a scheme or supply a custom bank identifier, choose a quantity, and receive instantly validated results. Clipboard and CSV export options accelerate regression scripts and bulk data seeding for continuous integration pipelines.

Use this generator for demos, sandbox gateways, or load tests; never attempt real transactions or fraud with the output.

Technical Details:

All logic runs client-side, leveraging a reactive engine to update the interface as you change parameters. The generator builds each sequence from an issuer prefix, random body digits, and a computed Luhn check digit, then stores results in local memory for quick reuse. No external requests occur, ensuring full data privacy.

Card-Scheme Selection

Choose from common issuers; length and prefixes adjust automatically to match brand rules.

Custom BIN / IIN

Enter up to digits to target specific banking identifiers for specialized testing.

Bulk Quantity Control

Generate between 1 and 100 numbers at once to populate datasets or perform stress scenarios.

Clipboard Utilities

Copy a single result, all results, or the full JSON payload to streamline scripted workflows.

CSV  Export

Download a comma-separated file with headers for quick import into spreadsheets or automated pipelines.

Calculations & Scoring:

The generator applies the Luhn algorithm to guarantee each number’s validity check digit.

1. Reverse the partial number (excluding the last digit).
2. Double every second digit (index 0).
3. Subtract 9 from results greater than 9.
4. Sum all digits.
5. Check digit = (10 − (sum mod 10)) mod 10.

Example

Partial 411111111111111 yields a sum of 60; the check digit is 0, producing 4111111111111110.

Interpretation

Payment gateways accepting test mode inputs will approve any number that passes the Luhn check, allowing end-to-end flow verification without sensitive data.

Data Privacy: All computations execute locally; no generated numbers leave your device.

Step-by-Step Guide:

Follow these quick actions to obtain ready-to-use test cards.

1. Select Card Type from the dropdown.
2. Enter the desired Quantity in the numeric field.
3. Optional Toggle Advanced and fill Custom BIN / IIN for issuer targeting.
4. Click Generate to create numbers.
5. Press Copy All to move the list to your clipboard or Export CSV to download a file.
6. Switch to the JSON tab and choose Copy JSON when structured data is required.

FAQ:

Find quick answers to common questions.