PassGuard – Real‑Time Password Strength Checker

🧠 Project Overview

PassGuard is a simple, real-time password strength checker built using HTML, CSS, and JavaScript. It instantly evaluates your password's strength based on length, character variety, and common patterns. Users receive visual feedback and helpful tips to create stronger, safer passwords. The tool runs entirely in the browser — no data is sent anywhere. Perfect for quick checks and learning password best practices.

🔴 Live Web Page

password-strength-checker

🧰 Tools & Technologies

Languages: JavaScript, HTML, CSS
Libraries: clipboard.js
Frontend: HTML5, CSS3 (Flexbox), Vanilla JS
OS: Cross‑platform (works on any modern browser)

✨ Key Features

Real‑time strength meter with dynamic colour gradient
Entropy, crack‑time, and guess‑count estimations
Checks against the top‑10,000 compromised passwords list
Copy‑to‑clipboard button with visual feedback
Fully client‑side—no server, no data leakage

📂 File Structure


password-strength-checker/
├── index.html
├── style.css
├── script.js
├── assets/
│   ├── demo-video.mp4
│   └── password-checker.html

🚀 How to Use

Step 1: Clone the Repository

$ git clone https://github.com/chandruthehacker/password-strength-checker.git

Step 2: Open `index.html`

The app is 100 % client‑side—just double‑click index.html or serve it with any static‑file server (e.g. live-server).

💻 Source Code