QR Code Scam Detector

A comprehensive security tool that allows users to scan or upload QR codes and instantly assess whether they are legitimate or suspicious before opening the link.

Features

• 🔍 QR Code Scanning: Scan from camera or upload image
• 🛡️ Security Analysis: Multiple security checks including domain reputation, HTTPS validation, URL structure analysis
• ⚠️ Risk Scoring: Clear Safe/Suspicious/Dangerous ratings with explanations
• 📊 Scan History: Track all scanned QR codes
• 🎯 User-Friendly: Designed for all users including non-tech-savvy individuals

Getting Started

Prerequisites

• Node.js 18+
• npm or yarn

Installation

npm install

Development

npm run dev

Open http://localhost:3000 in your browser.

Build

npm run build
npm start

Security Checks

The detector performs the following security checks:

1. Domain Reputation: Checks if the domain is known for malicious activity
2. HTTPS & Certificate: Validates SSL/TLS certificates
3. URL Structure: Detects typosquatting and suspicious patterns
4. Redirect Chain: Analyzes redirect chains for suspicious behavior
5. Blacklist Check: Cross-references with known scam databases

Tech Stack

• Next.js 14: React framework with API routes
• TypeScript: Type safety
• Tailwind CSS: Styling
• jsQR: QR code decoding
• Lucide React: Icons

Future Enhancements

• Machine learning model for scam detection
• Browser extension
• Mobile app (React Native)
• Community reporting system
• Enterprise mode

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