Singapore Driving Licence Number Regex for JavaScript

What this pattern does

This page provides a lightweight, single-purpose regular expression for matching singapore driving licence number, ported and verified for JavaScript. Identity and credential patterns need both correctness and safety, since they're frequent targets for adversarial input. The snippet below is ready to drop into your JavaScript project — whether you're validating in an Express middleware, a Next.js API route, or a client-side form.

Javascript Implementation

// Singapore Driving Licence Number
// ReDoS-safe | RegexVault — Identity & PII > Driver's License Numbers

const singaporeDrivingLicenceNumberRegex = /^[STFG][0-9]{7}[A-Z]$/;

function validateSingaporeDrivingLicenceNumber(input: string): boolean {
  return singaporeDrivingLicenceNumberRegex.test(input);
}

// Example
console.log(validateSingaporeDrivingLicenceNumber("S1234567D")); // true

Test Cases

When to use this pattern

This pattern is drawn from the Identity & PII > Driver's License Numbers category and carries a ReDoS-safe certification. That matters for JavaScript developers because especially critical in long-running Node.js event loops where a ReDoS vulnerability can block the entire process. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

Singapore driving licences use the same number as the NRIC for Singapore citizens and PRs. Foreign nationals have a FIN-based licence number. Same format as pii-nid-01 — the licence number IS the NRIC/FIN number.