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Regexflux

Identifiers Regex Patterns

Patterns for matching UUIDs, credit card numbers, SSNs, and other structured identifiers.

8 patterns

American Express Numberbeginner

Matches Amex card numbers (starts with 34 or 37, 15 digits).

JSPYTHONJAVAPHPGO
Any Credit Card Numberintermediate

Matches major credit card numbers (Visa, Mastercard, Amex, Discover).

JSPYTHONJAVAPHPGO
Mastercard Numberintermediate

Matches Mastercard credit card numbers (starts with 51-55 or 2221-2720).

JSPYTHONJAVAPHPGO
Visa Card Numberbeginner

Matches Visa credit card numbers (starts with 4, 13 or 16 digits).

JSPYTHONJAVAPHPGO
MongoDB ObjectIdbeginner

Matches 24-character hexadecimal MongoDB ObjectId strings.

JSPYTHONJAVAPHPGO
US Social Security Numberintermediate

Matches US SSN in XXX-XX-XXXX format with basic area number validation.

JSPYTHONJAVAPHP
UUID (Any Version)beginner

Matches UUID strings of any version in standard hyphenated format.

JSPYTHONJAVAPHPGO
UUID v4intermediate

Matches UUID version 4 strings in standard hyphenated format.

JSPYTHONJAVAPHPGO