@sopkit/password

Premium, lightweight password generation and strength analysis library for Browser and Node.js. Part of the SopKit utility ecosystem.

Online Interactive Tool

You can use the browser-based interactive version of this tool at SopKit Password Generator.

Features

• Highly customizable password generator (custom length, character pool filters).
• Password strength analysis using Information Entropy (shannon entropy) thresholds.
• Security suggestions dynamically tailored to user inputs.
• Zero dependencies.
• ESM and CommonJS support.

Installation

npm install @sopkit/password

Quick Start

ESM

import { generate, analyze } from "@sopkit/password";

// Generate secure password
const pass = generate({ length: 16, uppercase: true, numbers: true, symbols: true });

// Strength Analysis
const analysis = analyze("P@ssw0rd123!");
console.log(`Entropy: ${analysis.entropy} bits`);
console.log(`Strength Score: ${analysis.score}/4 (${analysis.label})`);
console.log("Suggestions:", analysis.suggestions);

License

MIT © SopKit