SSN Regex Go Validator

What is SSN Regex?

In Go (or Golang), regular expressions are handled via the built-in regexp package, allowing developers to match and validate text with precision.

A Social Security Number (SSN) in the U.S. has a fixed format: AAA-GG-SSSS, where:

• AAA is the area number (3 digits)

• GG is the group number (2 digits)

• SSSS is the serial number (4 digits)

  
  

To validate this structure, regex provides a simple and efficient solution using the pattern:

^\d{3}-\d{2}-\d{4}$

This pattern ensures:

• Three digits

• Followed by a dash

• Then two digits

• Another dash

• And four final digits

  
  

Core Features & Benefits

• Format-Specific: Strictly enforces U.S. SSN format.

• Instant Validation: Works immediately in Go with regexp.MustCompile.

• Safe Testing: Avoid using real data—test your systems with dummy values.

• Reusable Regex: Easily incorporate this pattern into your Go codebase.

• Compatible with Multiple Tools: Works great with UUID Generator, MAC Address Generator, and Phone Number Regex Go Validator for full simulation.

  
  

  
  

Example Code in Go

package main

import (
    "fmt"
    "regexp"
)

func isValidSSN(ssn string) bool {
    // Regex for U.S. SSN: 3 digits - 2 digits - 4 digits
    var ssnRegex = regexp.MustCompile(`^\d{3}-\d{2}-\d{4}$`)
    return ssnRegex.MatchString(ssn)
}

func main() {
    testSSN := "123-45-6789"
    fmt.Printf("Is '%s' a valid SSN? %t\n", testSSN, isValidSSN(testSSN))
}

Pro Tips for Using SSN Regex in Go

• Use Anchors for Full Match: Always wrap your regex with ^ and $ to ensure the entire string is validated and not just a substring.

• Avoid Real Data in Tests: Never use actual SSNs in testing environments. Instead, simulate them using tools like the Username Generator, Phone Number Generator, or Address Generator to create complete mock profiles.

• Precompile for Performance: Use regexp.MustCompile() outside of loops or functions to precompile your regex and improve performance, especially in large-scale apps.

• Validate Format, Not Identity: Regex only checks structure. To validate real SSNs, integrate with a verification API or official database.

• Use Logging for Debugging: While testing your Go regex logic, add logs to track matches and mismatches. This will help catch formatting issues early.

Common Use Cases

• Form Validation: Ensure users enter SSNs in the correct format.

• Onboarding Systems: Verify identification during user registration.

• Data Cleansing: Clean up and standardize SSN fields in your database.

• Compliance Systems: Enforce format validation for privacy-sensitive workflows.

  
  

Combine With These Tools

Use the SSN Validator with these Qodex tools for complete profile simulation and testing:

• Phone Number Generator – Generate U.S. numbers to pair with SSNs.

• Address Generator – Create fake yet realistic U.S. addresses for mock user data.

• Email Generator – Build full user profiles for form testing.

• UUID Generator – Assign unique identifiers to each mock user.

• MAC Address Generator – Useful for simulating device-based identity.

• Regex Tester for Go – Validate any pattern directly in your Go applications.

Regex for Other Languages

Want to test SSNs in other languages?

• JavaScript: Use in JavaScript Regex Tester

• Python: Try in Python Regex Tester

• Java: Validate in Java Regex Tester