Password Generator

A fast, zero-dependency browser tool for generating strong, customizable passwords.

Vanilla JSHTMLCSSWeb Crypto API

password-generator.app

Overview

Browser-native password generation with no external dependencies, no network requests, and no framework overhead. Built to be embeddable in any site as a single HTML file and to run fully offline.

The Problem

Most password generator sites require JavaScript frameworks, make network requests, or are cluttered with third-party scripts. Users who care about security don't want a tool that phones home.

The Solution

Web Crypto API's getRandomValues provides cryptographic randomness directly in the browser. Character set selection, length controls, and a strength meter are all pure DOM manipulation — no build step, no dependencies.

Key Features

Web Crypto API

Uses crypto.getRandomValues for cryptographically secure randomness — not Math.random().

Configurable Character Sets

Toggle uppercase, lowercase, numbers, and symbols independently with minimum count enforcement per category.

Strength Visualization

Real-time entropy calculation displayed as a color-coded strength bar with bit-length readout.

Zero Dependencies

Single HTML file — no npm, no bundler, no network requests. Works completely offline.