🔐 Password Strength Checker CLI Tool

A feature-rich command-line tool built using JavaScript (Node.js) to analyze and validate passwords using various methods including dictionary checks, brute-force simulation, hashing, file input/output, and live progress bars.

⚙️ Tech Stack

• Language: Node.js (ES Modules)

✨ Features

• ✅ Check password strength with scoring
• 📖 Check passwords using a dictionary wordlist (-d)
• 🧠 Brute-force password cracking simulation (-b)
• 📂 Input passwords from a file (-l input.txt)
• 📝 Save output results to a file (-o output.txt)
• 🔐 Check a single hashed password (-i <hash>)
• 🧾 Use a custom dictionary wordlist (-w wordlist.txt)
• 📊 Command-line progress bar for long-running operations

🧰 Requirements

• Node.js v18+ (recommended: v20+)
• "type": "module" must be set in package.json to use ES modules

📦 Installation

git clone https://github.com/prabhakaranskt/password-strength-checker-CLI-tool.git
cd password-strength-checker-CLI-tool
npm install

Usage:

1. Check a Single Password

   node src/cli.js -p "YOUR PASSWORD" ```
   

2. Dictionary Check Mode

    node src/cli.js -d -w wordlist.txt --password 'YOUR PASSWORD' 

3. Bruteforce Simulation Mode

    node src/cli.js -b -p 'YOUR PASSWORD'

4. Hash Check Mode

    node src/cli.js -i -p 'YOUR PASSWORD'

5. Test Input File & Output File

   node src/cli.js -l input.txt -o output.txt