Credit Card Validator

Credit Card validator

Validate any credit card number online. Instantly check Luhn algorithm checksum, card brand, length, issuer bank, and card type.

About Credit Card Validation
Instantly check credit card number validity using the official Luhn algorithm (Modulus 10 checksum). Inspect card brand, issuing bank, card type, structure length, and ISO country details.

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Key Features of Our Credit Card Validator

🔢

Luhn Modulus 10 Verification

Instantly calculates card checksum validity using the official Luhn algorithm (ISO/IEC 7812-1).

💳

Multi-Network Brand Recognition

Auto-detects Visa, MasterCard, American Express, Discover, JCB, Diners Club, UnionPay, and Maestro.

🏢

MII Category Breakdown

Identifies the Major Industry Identifier (Banking, Travel, Telecom, Petroleum) from the lead digit.

🏦

Issuer Bank & Location Lookup

Resolves issuing bank names, country flags, and card types (Credit/Debit/Prepaid).

📏

Structure & Length Audit

Audits card digit lengths against network specifications (13 to 19 digits).

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100% Client-Side Privacy

Card numbers are validated in real-time. No financial numbers are ever saved on servers.

Frequently Asked Questions

The Luhn algorithm is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers and IMEI numbers. It prevents accidental mistyping.

No. A valid Luhn test only confirms that the card number is mathematically correct. It does not check if the account is active or has funds.

Yes! Our validator operates 100% in your browser. No card numbers are ever stored, transmitted, or logged.

The first digit of a card number represents the MII category. For example, 4 and 5 represent Banking & Financial, 3 represents Travel & Entertainment, and 6 represents Merchandise.

A card fails validation if a digit was mistyped, omitted, or if the number is an invalid test sequence that does not satisfy the Mod 10 formula.

Yes! Web developers and QA engineers can use this tool to verify test card formats and BIN structures.
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