Mastercard Generator

Mastercard numbers — 16 digits, 51–55 and 2221–2720 ranges, Luhn check.

International Validation Generation

Try the demo NuGet: DocumentNumber.PaymentCardNumber.Mastercard.Generator

How generation works

The Mastercard generator builds a structurally valid sample using the same rules the validator enforces — check digits included. Use it for test data and fixtures; never for production records.

Install the package

bash

dotnet add package DocumentNumber.PaymentCardNumber.Mastercard.Generator

Generator in C#

Program.cs

using DocumentNumber.PaymentCardNumber.Mastercard.Generator;

var generator = new MastercardPaymentCardGenerator();
var sample = generator.GenerateDocumentNumber();

Console.WriteLine(sample);

Live example

5375718830831320 — a real Mastercard value accepted by the validator

Try Mastercard generation

Runs the exact same library code your application uses. Nothing you enter is stored.

Frequently asked questions

What is Mastercard?

Mastercard numbers — 16 digits, 51–55 and 2221–2720 ranges, Luhn check.

How does Mastercard generation work?

The generator builds a structurally valid Mastercard sample using the same rules the validator enforces — including check digits. Generated values are intended for tests and development only.

How do I install the Mastercard generator package?

dotnet add package DocumentNumber.PaymentCardNumber.Mastercard.Generator

Is the value I enter in the demo stored?

No. Demo inputs are processed in memory for the current request only and are never persisted or shared.