Password Strength Analyzer & Breach Checker
Why Choose This Project
Weak or compromised passwords are one of the leading causes of account breaches. Users often reuse passwords or choose easily guessable ones, leaving their accounts vulnerable. This project provides a comprehensive platform to analyze password strength, check against known breached password databases, and provide actionable suggestions for improvement. It is ideal for security-conscious organizations, developers, and end-users to proactively enhance account security.
What You Get
A web-based system where users can enter passwords to evaluate strength based on length, complexity, and entropy. The platform also cross-checks passwords against publicly known breached password datasets to warn users if their password has been exposed in prior data leaks. Administrators can enforce password policies, track usage trends, and generate reports for organizational compliance.
Key Features
| Feature | Description |
|---|---|
| User Authentication | Secure login for admin and users to manage password checks |
| Password Strength Analysis | Evaluate passwords for length, complexity, entropy, and patterns |
| Breach Database Check | Compare passwords against known breached datasets (HaveIBeenPwned API or local DB) |
| Risk Scoring | Assign risk levels: Weak, Medium, Strong, Compromised |
| Suggestions & Recommendations | Provide actionable tips to strengthen weak passwords |
| Reporting & Dashboard | Generate reports for password policy compliance and trends |
| Alerts & Notifications | Notify users/admins of compromised passwords |
| Policy Enforcement | Admin can define minimum strength and breach policies |
Technology Stack
| Layer | Technology |
|---|---|
| Frontend Layer | HTML, CSS, JavaScript, Bootstrap for responsive UI |
| Backend Layer | Node.js (Express) / Java Spring Boot / Python Flask |
| Database Layer | MongoDB / MySQL / PostgreSQL for storing password check logs and user data |
| Security Layer | HTTPS, JWT / OAuth2 for authentication |
| Optional Libraries & APIs | zxcvbn for password strength analysis, HaveIBeenPwned API, Email/SMS APIs for alerts |
Working Flow
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User Login – Secure authentication for users/admins.
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Password Entry – User enters password for evaluation.
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Strength Analysis – System calculates password entropy, checks for patterns, repetition, and common words.
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Breach Check – Password is checked against known breached password datasets.
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Risk Scoring & Recommendations – Assign risk level and suggest improvements if weak or compromised.
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Reporting & Dashboard – Admins can view trends, common weak passwords, and compliance statistics.
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Alerts & Notifications – Notify users/admins if passwords are found in breaches.
Main Modules
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Authentication Module → Secure login and role management
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Password Input Module → Accept password for analysis
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Strength Analyzer Module → Evaluate password complexity and entropy
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Breach Check Module → Validate against breached password datasets
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Risk Assessment Module → Assign severity/risk levels to passwords
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Reporting Module → Generate detailed compliance reports
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Dashboard Module → Visualize password trends, strength distribution, and breaches
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Notification Module → Send alerts for compromised passwords
Security Features
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HTTPS-secured portal and API endpoints
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JWT/OAuth2 authentication for secure access
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Role-based access control for sensitive modules
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Input validation to prevent injection or malicious entries
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Real-time alerts for compromised or weak passwords