🔐 Password Security Analyzer

Security-Focused Real-Time Password Strength & Risk Analyzer

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A modern, security-focused password strength analyzer that evaluates passwords in real time using rule-based validation, pattern detection, entropy-based crack-time estimation, and actionable security insights — presented with a professional, product-grade web UI.

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🚀 Features

✅ Core Security Analysis

• Password length validation
• Uppercase, lowercase, digit, and special character checks
• Real-time strength scoring (0–100)
• Strength classification:
  • ⚠️ Weak
  • 🟡 Medium
  • 🟢 Strong
  • 🔒 Very Strong

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🧠 Advanced Security Intelligence

• Detection of weak patterns (sequences, repeated characters)
• Common password detection using an external dataset
• Entropy-based crack-time estimation (GPU brute-force model)

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💡 User Guidance

• Clear improvement suggestions
• Security insights explaining why a password is weak
• Breach-style warning for predictable or common passwords

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🎨 Professional Web Interface

• Dark-mode, glassmorphism UI
• Animated strength meter
• Live feedback while typing
• Password visibility toggle
• Clean SaaS-style layout

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🔐 Security Perspective

This analyzer models how attackers evaluate password strength by considering:

• Character set size (lowercase, uppercase, digits, symbols)
• Password length
• Predictable patterns (sequences, repeated characters)
• Common password databases
• Estimated GPU-based brute-force attack speeds

Crack-time estimation is calculated using entropy principles to simulate realistic attack scenarios.

The goal is not only to rate passwords, but to explain structural weaknesses and promote security awareness.

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🖥️ Tech Stack

Backend / Logic

• Python
• Regex-based validation
• Modular architecture (validator, scorer, patterns, suggestions)

Frontend

• HTML5
• CSS3 (Glassmorphism, animations)
• Vanilla JavaScript (real-time analysis)

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📸 Preview

Weak Password Example

Medium Password Example

Very Strong Password Example

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📂 Project Structure

password-security-analyzer/
│
├── src/
│   ├── validator.py
│   ├── scorer.py
│   ├── patterns.py
│   └── suggestions.py
│
├── data/
│   └── common_passwords.txt
│
├── web/
│   ├── index.html
│   ├── style.css
│   └── script.js
│
├── screenshots/
│   ├── weak-password.png
│   ├── medium-password.png
│   └── strong-password.png
│
├── main.py
└── README.md

▶️ How to Run

🌐 Web Version

Open web/index.html in your browser

Start typing a password to see real-time analysis

🖥️ Python (CLI Version)
python main.py