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Free Credit Card Validator Online
Validate credit card numbers using the Luhn algorithm. Detect card type.
Note:
This tool only validates the card number format using the Luhn algorithm. It does not verify if the card is active or has funds.
Privacy: All processing is done client-side; nothing you type or generate is sent to any server.
Monetization: We show light, non-intrusive ads to keep these tools free for everyone.
How It Works
- Enter credit card number
- See instant validation result
- View detected card type
- Check Luhn algorithm compliance
When to Use This Tool
- ✓Testing payment forms
- ✓Validating card number format
- ✓Development and testing
- ✓Learning Luhn algorithm
Use Cases & Examples
- •E-commerce form testing
- •Payment integration development
- •Card type detection
- •Format validation
Frequently Asked Questions
Does this charge or store my card?
No! Only validates format using Luhn algorithm. Never stores or transmits data.
What is the Luhn algorithm?
Mathematical formula to validate card numbers and detect typos. Used by all credit cards.
Can it detect fake cards?
It validates format only. Cannot verify if card is real, active, or has funds.