A tiny utility that helps you understand, build, and test regular expressions using clean, readable code.
- 🧠
explain(regex)— Converts regex into plain English - 🔍
test(value, pattern)— Tests a string against a regex or named pattern - 🧱
build(name)— Generates regex for common use-cases like "email", "url", etc. - 💬 Clean console formatting for output clarity
- 🌐 Supports both Node.js and browser environments
npm install @the-node-forge/regex-simplifierimport { build, test, explain } from '@the-node-forge/regex-simplifier';
// Build common patterns
const emailRegex = build('email');
console.log(emailRegex.test('me@example.com')); // true
// Test a value directly
console.log(test('12345', 'zip')); // true
console.log(test('https://the-node-forge.dev', 'url')); // true
// Explain a raw regex
console.log(explain(/^\d{5}$/));
// => This pattern includes:
// - Starts with
// - exactly five digits
// - Ends with| Name | Description |
|---|---|
| Validates an email address | |
| url | Validates an HTTP(s) URL (no FTP), with localhost or domain, optional port & path |
| zip | Validates a US ZIP code (5 or 9 digits) |
| phone | Validates a US phone number (with optional +1, balanced parentheses) |
| ipv4 | Validates an IPv4 address |
| ipv6 | Validates a full IPv6 address (no shorthand) |
| iso-date | Validates a date in ISO format (YYYY-MM-DD) |
| us-date | Validates a date in US format (MM/DD/YYYY) |
| time24 | Validates time in 24‑hour format (HH:mm or HH:mm:ss) |
| hex-color | Validates a hexadecimal color code (#RGB or #RRGGBB) |
| rgb-color | Validates an RGB color value (0–255 each) |
| credit-card | Validates a credit card number (Visa, MasterCard, Amex) |
| ssn | Validates a US Social Security Number |
| slug | Validates a URL slug (lowercase, numbers, hyphens) |
| uuid | Validates a UUID (versions 1–5) |
We welcome contributions! Feel free to open an issue or submit a pull request.
If you find Regex Simplifier helpful, give it a ⭐ on GitHub.
Full documentation available at: https://the-node-forge.github.io/regex-simplifier
MIT © 2025 The Node Forge