Credit Card Regex Pattern

Example:

^[0-9]{13,19}$

Matches:
✓ 4532123456789012 (Visa)
✓ 5425233430109903 (Mastercard)

Basic credit card validation: ^[0-9]{13,19}$. For production, use Luhn algorithm validation too.

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FAQs

Should I use only regex for credit cards?

No! Always use Luhn algorithm (mod-10 checksum) for actual validation. Regex only checks format.