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Credit Card Regex Python Validator

Our tool validate credit card numbers using Python. It includes information on regex patterns for different card types, a guide on how to implement validation in Python, and common use cases for credit card validation.

Regex Tester Online tools to learn, build & test Regular Expression (RegEx/RegExp)

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Regular Expression - Documentation

Introduction Credit Card Python

Credit card validation in Python is crucial for applications involving financial transactions. Python's re module can be used for regex-based validation of credit card numbers. A common regex pattern for credit card validation might be ^(?:4[0-9]{12}(?:[0-9]{3})?)$ for Visa cards.

What is Credit Card Regex?

Credit card numbers follow specific patterns based on the card issuer.

The Credit Card Regex Pattern

Pattern for Visa:

^(?:4[0-9]{12}(?:[0-9]{3})?)$

The pattern checks for numbers starting with 4 and being 13 or 16 digits long.

How to Validate Credit Cards in Python?

To validate credit card numbers using regex in Python:


import re

def is_valid_visa_card(number):
    visa_regex = re.compile(r'^(?:4[0-9]{12}(?:[0-9]{3})?)$')
    return bool(visa_regex.match(number))

test_card = "4111111111111111"
print(f"Is '{test_card}' a valid Visa card? {is_valid_visa_card(test_card)}")

Uses of Credit Card Regex Validation

Financial Transaction Verification: Ensuring credit card numbers are valid before processing transactions.
Form Validation: Validating credit card details in online forms and applications.

What next?

Python’s regex capabilities effectively validate credit card numbers, crucial for financial applications. For broader validation across different card types, Akto's regex validator provides a comprehensive tool for ensuring accuracy and adherence to card number formats.

Frequently asked questions

What credit card brands can be validated using the given regex pattern?

The given regex pattern is specifically designed for validating Visa credit card numbers.

What credit card brands can be validated using the given regex pattern?

The given regex pattern is specifically designed for validating Visa credit card numbers.

Can I use this regex pattern to validate other credit card brands?

No, the given regex pattern is tailored for Visa cards. Different credit card brands may have different number patterns.

Can I use this regex pattern to validate other credit card brands?

No, the given regex pattern is tailored for Visa cards. Different credit card brands may have different number patterns.

How can I modify the regex pattern to validate Mastercard numbers?

To validate Mastercard numbers, you can use the regex pattern ^(?:5[1-5][0-9]{14})$.

How can I modify the regex pattern to validate Mastercard numbers?

To validate Mastercard numbers, you can use the regex pattern ^(?:5[1-5][0-9]{14})$.

Are there any Python libraries available specifically for credit card validation?

Yes, there are Python libraries like creditcard and py-cpuinfo that provide more comprehensive credit card validation functionalities.

Are there any Python libraries available specifically for credit card validation?

Yes, there are Python libraries like creditcard and py-cpuinfo that provide more comprehensive credit card validation functionalities.

Can I use this regex pattern to check if a credit card number is valid and active?

No, the given regex pattern only checks if the number adheres to the Visa card format. Validating if a card is active requires additional steps, such as contacting the card issuer.

Can I use this regex pattern to check if a credit card number is valid and active?

No, the given regex pattern only checks if the number adheres to the Visa card format. Validating if a card is active requires additional steps, such as contacting the card issuer.

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File convertors

DNS tools

Encoders & Decoders

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Generators

Regex testers

Credit Card Regex Python Validator

GUID Regex Python Validator

IP Address Regex Python Validator

Date Regex Python Validator

RegEx Tester

Go RegEx Tester

Javascript RegEx Tester

Java RegEx Tester

Email Regex Go Validator

Phone Number Regex Go Validator

Numbers Regex Go Validator

URL Regex Go Validator

Password Regex Validator

SSN Regex Go Validator

Mac Address Regex Go Validator

UUID Regex Go Validator

Credit Card Regex Go Validator

GUID Regex Go Validator

IP Address Regex Go Validator

Date Regex Go Validator

Email Regex Java Validator

Phone Number Regex Java Validator

Numbers Regex Java Validator

URL Regex Java Validator

Password Regex Java Validator

SSN Regex Java Validator

Mac Address Regex Java Validator

UUID Regex Java Validator

Credit Card Regex Java Validator

GUID Regex Java Validator

IP Address Regex Java Validator

Date Regex Java Validator

Email Regex Javascript Validator

Phone Number Regex Javascript Validator

Numbers Regex Javascript Validator

URL Regex Javascript Validator

Password Regex Javascript Validator

SSN Regex Javascript Validator

Mac Address Regex Javascript Validator

UUID Regex Javascript Validator

Credit Card Regex Javascript Validator

GUID Regex Javascript Validator

IP Address Regex Javascript Validator

Date Regex Javascript Validator

Email Regex Python Validator

Phone Number Regex Python Validator

Numbers Regex Python Validator

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