🔍 AI Text Detector Browser Extension

A sophisticated browser extension that automatically detects and highlights AI-generated text on web pages using advanced heuristic analysis.

Installation • Features • Detection Rules • Customization • Known Issues • Contributing • Privacy

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✨ Features

• 🎯 Real-time analysis of web content
• 🎨 Two-tier highlighting system:
  • 🟡 Yellow: Moderate AI likelihood (30-50%)
  • 🔴 Red: High AI likelihood (>50%)
• 🔄 Dynamic content analysis for social media
• 📊 Detailed scoring breakdown on hover
• 🚀 Platform-specific optimizations
• 🔒 100% private, runs entirely in your browser

🎯 Detection Rules

Text Analysis Criteria

1. Phrase Detection

• Common AI Phrases (Score Impact: +0.08 per match, max 0.3)
  • First-person patterns: "I understand", "I believe", "I think"
  • Transition phrases: "let's dive in", "it's worth noting"
  • Technical terms: "enables", "facilitates", "leverages"

2. Technical & Academic Patterns

• Technical Structure (Score Impact: +0.35 max)
  • Method descriptions
  • Theoretical frameworks
  • Research implications
  • Bullet point structures

3. Writing Style Analysis

• Sentence Structure (Score Impact: +0.2)
  • Uniform sentence lengths
  • Consistent paragraph structure
  • Formal language patterns

4. Content Structure

• Paragraph Analysis (Score Impact: +0.15)
  • Uniform paragraph lengths
  • Structured lists
  • Systematic formatting

Scoring Thresholds

General Websites

• 🟡 Moderate: ≥ 0.3 (30%)
• 🔴 High: ≥ 0.5 (50%)

Social Media (LinkedIn, Twitter/X)

• 🟡 Moderate: ≥ 0.25 (25%)
• 🔴 High: ≥ 0.4 (40%)

🚀 Installation

1. Download or clone this repository
2. Open Brave browser and navigate to brave://extensions/
3. Enable "Developer mode" in the top right
4. Click "Load unpacked" and select the extension directory

⚙️ Customization

Adjustable Parameters in content.js:

const AI_DETECTION_CRITERIA = {
    repetitionThreshold: 0.25,      // Word repetition sensitivity
    sentenceLengthVariation: 0.15,  // Sentence structure uniformity
    minTextLength: 40,              // Minimum characters to analyze
    // ... other customizable parameters
};

Key Adjustable Features:

• Detection thresholds
• Phrase matching patterns
• Technical term recognition
• Platform-specific settings

🔒 Privacy & Security

This extension:

• ✅ Runs entirely in your browser
• ✅ No external API calls
• ✅ No data collection or storage
• ✅ No tracking or analytics
• ✅ Open source and auditable

🤝 Contributing

Contributions are welcome! Here's how you can help:

• 🐛 Report bugs
• 💡 Suggest features
• 🔍 Add detection patterns
• 📝 Improve documentation
• 🎨 Enhance UI/UX

📄 License

MIT License - feel free to use, modify, and distribute!

⚠️ Known Issues

Performance Impact

The extension performs real-time analysis of text content, which may impact performance on certain pages:

• Complex Web Applications: Pages with extensive dynamic content (like social media feeds) may experience slower loading times
• Text-Heavy Pages: Documents or articles with large amounts of text might take longer to process
• Frequently Updating Content: Pages that constantly refresh or update content may experience performance degradation

Mitigation Steps

If you experience issues on a particular website:

1. Temporary Disable:

   • Click the extension icon in your browser toolbar
   • Select "Pause on this site" or toggle the extension off temporarily

2. Permanent Disable for Specific Sites:

   • Click the extension icon
   • Select "Manage Extensions"
   • Under "Site access", add the problematic site to the blocked list

3. Report Issues:

   • If you consistently experience problems on specific sites, please report an issue
   • Include the website URL and a description of the behavior

Current Limitations

• May not detect AI text in embedded iframes
• Some dynamic content loading methods might be missed
• Performance impact varies based on page complexity and content length

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Made with ❤️ for the AI-aware web community