🔐 Password Strength Analyzer

A simple and secure Password Strength Analyzer built using Python and Flask that evaluates password security based on complexity, length, and character combinations.

---

🚀 Features

• 🔍 Analyze password strength instantly
• 🔐 Checks uppercase, lowercase, numbers, and symbols
• 📏 Evaluates password length and complexity
• ⚠️ Detects weak/common passwords
• 💡 Suggests stronger password alternatives
• 🌐 Simple web-based interface using Flask

---

🧠 How It Works

1. User enters a password
2. System analyzes:
   • Length
   • Uppercase letters
   • Lowercase letters
   • Numbers
   • Special characters
3. Password is scored based on security rules
4. Strength level is displayed:
   • Weak
   • Medium
   • Strong
5. Suggestions are provided for improving weak passwords

---

🛠️ Tech Stack

• Python
• Flask
• HTML
• CSS
• JavaScript

---

📁 Project Structure

password-strength-analyzer/
│
├── app.py
├── requirements.txt
│
├── templates/
│   └── index.html
│
├── static/
│   ├── css/
│   │   └── style.css
│   │
│   └── js/
│       └── script.js
│
└── utils/
    └── analyzer.py

---

⚙️ Installation & Setup

1️⃣ Clone Repository

git clone https://github.com/vrxayush/Password-Strength-Analyzer.git

cd password-strength-analyzer

2️⃣ Create Virtual Environment

python -m venv venv

3️⃣ Activate Virtual Environment

Windows

.\venv\Scripts\activate

Linux / Mac

source venv/bin/activate

4️⃣ Install Dependencies

pip install -r requirements.txt

5️⃣ Run Project

python app.py

---

🌐 Open in Browser

http://127.0.0.1:5000

---

🔑 Example

Weak Password

password123

Strong Password

R@juSecure#2026

---

⚠️ Important Notes

• Do not use common passwords
• Longer passwords are more secure
• Use a mix of:
  • Uppercase letters
  • Lowercase letters
  • Numbers
  • Symbols

---

📈 Future Improvements

• 📊 Real-time password strength meter
• 🔐 Password hashing system
• 🗄️ Database integration for password history
• 🌙 Dark mode UI
• 🔑 Random strong password generator
• ☁️ API integration for breached password detection

---

🎯 Use Case

This project demonstrates:

• Password security concepts
• Basic cryptography understanding
• Flask web development
• Regex pattern matching
• Frontend and backend integration

---

👨‍💻 Author

Ayush Shah
Computer Science Engineering Student
Interest: Cyber Security, AI, IoT & Software Development