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Tạo và xác thực số thẻ ngân hàng

Xác thực và tạo số thẻ ngân hàng/thẻ tín dụng kiểm tra trực tuyến: hỗ trợ Visa, Mastercard, American Express, Discover, UnionPay, JCB, tự động tính toán chữ số kiểm tra Luhn.

Cách sử dụng

Chọn "Xác thực" và dán số thẻ để nhận diện tổ chức thẻ và xác minh; chọn "Tạo" để tạo hàng loạt số thẻ kiểm tra có chữ số kiểm tra hợp lệ theo tổ chức thẻ.

Overview

Card Number Generator & Validator (Luhn) is a generator tool that Validate or generate test card numbers for Visa, Mastercard, Amex, Discover, UnionPay and JCB using the Luhn algorithm. Supports batch processing and one-click copy. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Create UUIDs and short strings
  • Raffle and random picks
  • Mock data for testing
  • Generate strong passwords
  • Use it to cross-check “银行卡号生成、luhn” in reports, docs or APIs to avoid manual conversion errors

How to use

  1. 1 Choose type and quantity
  2. 2 Set length/charset rules
  3. 3 Preview and lock/exclude items
  4. 4 Copy or export CSV/TXT

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Batch export in chunks for thousands
  • Mock data for testing only
  • Uses Crypto API

FAQ

How random?
crypto.getRandomValues with system entropy.
Reproducible?
Fix seed or export log if needed.
How is Card Number Generator & Validator (Luhn) different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “银行卡号生成、luhn” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
Tip：Tip: Bookmark this page or pin the tab; find related tools via categories and search (convert → calculate → export).
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All calculations run locally in your browser; nothing is uploaded.