Credit Card Validator
Validate credit card numbers using the Luhn algorithm and identify card type instantly.
Valid Card
Card Type:
Visa
Issuer:
Not available
Masked Number:
**** **** **** 9012
What this tool does?
The Credit Card Validator tool helps users verify whether a credit card number is valid using the industry-standard Luhn algorithm. It also detects the card type (Visa, MasterCard, etc.) based on the input. This tool is essential for developers, testers, and fintech UX/UI designers needing to validate credit card inputs without submitting real data.
Key Features
- Real-time Luhn algorithm validation
- Instant card type detection
- Secure front-end only logic (no data sent to server)
- Responsive and clean design
- Useful for developers and testers
How to use?
- Enter the credit card number in the input field.
- Click the Validate button.
- View whether the number is valid and what type of card it is.
Creative Use Cases
- Testing payment input forms
- Educational demonstrations of Luhn check
- Mock validation in UI/UX prototypes
- QA in sandbox environments
- Training junior developers in validation logic
Tool Description:
Credit Card Validator is a free web tool that checks the validity of credit card numbers using the Luhn algorithm and detects card types like Visa, MasterCard, AmEx, and more. A must-have utility for developers, testers, and security-aware projects.
FAQs
Is this a real-time validator?
Yes, validation occurs instantly on the client side.
Does this send data to a server?
No, all logic is handled in the browser for privacy and speed.
What is the Luhn algorithm?
It's a checksum formula used to validate credit card numbers.
Can this detect card type?
Yes, it detects common types like Visa, MasterCard, AmEx, and Discover.
Is my card information secure?
Absolutely! All processing happens locally in your browser - no data is transmitted.
What card types are supported?
Visa, MasterCard, American Express, Discover, and other major card types.