Payment card checker

Client

Paste card digits as they appear on a sample—spaces and dashes are ignored. You get a Luhn checksum result and a best-effort network label from common BIN/IIN prefixes. For IMEI or non-card identifiers use the Luhn-only tool.

Limits

There is no issuer directory, CVV/expiry validation, or funding check—only digit cleanup, prefix rules, length hints, and mod 10. Extremely long pastes are capped so the tab stays responsive.

Sensitive data: checks run only in your browser. Prefer processor-published test card numbers, never live PANs on shared devices.
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Spaces and dashes are stripped before counting digits and running Luhn. Card-network labels come from common public BIN/IIN ranges—they may mismatch exotic co-branded or new ranges.

16 digits after cleanup

Likely network: Visa

Luhn checksum: passes — algorithm-only; does not mean the card is active or genuine.

Common use cases

  • Sanity-check checkout fixtures using processor test PANs before pointing QA at a sandbox.
  • Explain why a pasted wallet token fails Luhn when someone mixes test and production samples.
  • Pair with the generic Luhn page when you only need mod 10 without card-brand messaging.

Common mistakes to avoid

  • Treating network detection as issuer truth

    BIN tables evolve and co-branded cards exist—the label here is a heuristic from open-range rules only.

  • Assuming Luhn pass means the card will authorize

    Luhn catches many typos in the digit string. Authorization, CVV, expiry, and fraud checks happen only at your processor.

FAQ

Do you contact a bank or processor?

No. Everything is evaluated locally from the digits you paste.

Why is this separate from the Luhn-only tool?

This page adds typical primary-account-number length hints and common Visa/Mastercard/Amex/Discover-style prefixes for developer ergonomics while repeating that results are non-authoritative.

Which algorithm is Luhn here?

The same ISO/IEC 7812 mod 10 algorithm as the dedicated Luhn checker—double every second digit from the right, subtract 9 from products over 9, sum divisible by 10.

Common search terms

Phrases people search for that match this tool. See the full long-tail keyword index.

  • credit card luhn check online
  • visa mastercard bin checker browser
  • payment card checksum validator no upload
  • validate primary account number luhn locally
  • discover amex prefix checker heuristic online

More tools

Related utilities you can open in another tab—mostly client-side.