@systemix/password

A cryptographically secure password generator with customizable complexity and entropy tools.

Installation

pnpm add @systemix/password

Basic Usage

import { generatePassword } from '@systemix/password';

const password = generatePassword();
// Default: 12 chars, lowercase + uppercase + numbers

Options

Property	Type	Default	Description
`length`	`number`	`12`	Password length (1–100)
`useNumbers`	`boolean`	`true`	Include 0–9
`useUppercase`	`boolean`	`true`	Include A–Z
`useLowercase`	`boolean`	`true`	Include a–z
`useSymbols`	`boolean`	`false`	Include special characters
`minNumbers`	`number`	`0`	Minimum numbers required
`minUppercase`	`number`	`0`	Minimum uppercase required
`minLowercase`	`number`	`0`	Minimum lowercase required
`minSymbols`	`number`	`0`	Minimum symbols required
`excludeSimilarCharacters`	`boolean`	`false`	Exclude visually similar chars
`count`	`number`	`1`	Number of passwords to generate

Examples

Strong password with symbols

const password = generatePassword({
  length: 16,
  useSymbols: true,
  minNumbers: 2,
  minSymbols: 2,
});

Entropy calculation

import { calculatePasswordEntropy } from '@systemix/password';

const entropy = calculatePasswordEntropy(16, 94); // length, charset size
console.log(`Entropy: ${entropy.toFixed(1)} bits`);

Try it

Open the Password Generator demo to experiment interactively.