Credit card BIN/IIN lookup
Free client-side Credit card BIN/IIN lookup web utility.
Credit Card BIN & IIN Inspector
Luhn (MOD-10) Checksum Validation
Valid ChecksumAbout this tool
How to use it
- Enter the first 6 to 8 digits of a payment card (the Bank Identification Number / IIN).
- Inspect the detected card network scheme (Visa, Mastercard, Amex, Discover, UnionPay, JCB, etc.).
- Review card attributes including card type (Credit vs Debit), level (Classic, Platinum, Signature), and issuing jurisdiction.
- Optionally enter the full card number (excluding CVV and expiry) to verify mathematical validity using the Luhn MOD-10 algorithm.
Why it matters
E-commerce merchants, fraud prevention teams, and payment engineers use BIN lookups to route transactions, reduce interchange costs, prevent chargeback fraud, and provide seamless checkout UX by displaying appropriate card brand badges.
When to use it
Use this tool when debugging payment gateway integrations (Stripe, PayPal, Adyen), validating checkout form inputs, or identifying unfamiliar card charges on bank statements.
Common questions
What is a Bank Identification Number (BIN)?
A BIN (also called an Issuer Identification Number or IIN) consists of the initial 6 or 8 digits of a credit, debit, or prepaid card. Established by ISO/IEC 7812, it identifies the card-issuing institution and card brand.
What is the Luhn Algorithm?
The Luhn algorithm (also known as the 'modulus 10' or 'mod 10' algorithm) is a simple checksum formula used to validate identification numbers, such as credit card numbers and IMEI numbers, protecting against accidental typos.
Is it safe to enter card numbers here?
Yes. This tool runs 100% client-side in your local browser memory. No information is transmitted to any server. Furthermore, we advise entering only the first 6 or 8 digits. Never enter CVV codes, expiration dates, or PINs into any online tool.