Gerador e validador de cartões (Luhn)

Overview

Card Number Generator & Validator (Luhn) is a Generator tool. 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

• Daily use of Card Number Generator & Validator (Luhn): Validate a card number to detect its network, or generate valid test numbers per network. — enter and get instant results without manual lookup.
• One-click copy keeps results ready to save, check or share with family and pros.
• Use Card Number Generator & Validator (Luhn) offline or on poor network — all calculations stay local and private.
• Create UUIDs and short strings
• Raffle and random picks

How to use

1. 1 Validate a card number to detect its network, or generate valid test numbers per network..
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