secure-password-generator

Generate cryptographically secure random passwords using Node.js crypto module.

Installation

npm install secure-password-generator

Usage

const generatePassword = require("secure-password-generator");

// Generate a 12-character password with all character types
const password = generatePassword();
console.log(password); // e.g. "aB3$xK9!mQ2@"

// Customize length
const longPassword = generatePassword({ length: 24 });

// Disable certain character types
const numbersOnly = generatePassword({
  uppercase: false,
  lowercase: false,
  symbols: false,
  length: 8
});
// e.g. "48291573"

API

generatePassword([options])

options

| Option | Type | Default | Description | |-------------|-----------|---------|---------------------------------| | length | number | 12 | Length of the generated password | | uppercase | boolean | true | Include uppercase letters (A-Z) | | lowercase | boolean | true | Include lowercase letters (a-z) | | numbers | boolean | true | Include numbers (0-9) | | symbols | boolean | true | Include symbols (!@#$%^&*()_-+=[]{}|;:',.<>?/~`) |

Returns

string — the generated password.

Throws

• If length is not a positive integer.
• If no character sets are selected.

Security

This package uses crypto.randomBytes with rejection sampling to ensure unbiased, cryptographically secure random passwords.

License

MIT