Website Highlight Saver

A Chrome extension that allows users to highlight and save text from any webpage with local storage and AI-powered summarization.

🎬 Working Demo

Watch the extension in action: Select text, save highlights, and navigate between them seamlessly.

Features

• Text Selection & Saving: Select any text on any webpage to save as a highlight
• AI Summarization: Get AI-powered summaries using OpenAI (rate-limited to 5 requests per minute, with summary caching)
• Local Storage: All highlights saved locally using Chrome's storage API
• Search & Filter: Search highlights by text, domain, or title
• Export/Import: Backup and restore highlights as JSON files
• Visual Highlighting: Saved highlights marked with yellow background
• Cross-Page Persistence: Highlights persist across browser sessions
• URL Navigation: Navigate directly to specific highlights via URL fragments

🚀 Installation

1. Download or clone this repository

2. Create icon files (required):

   • Create 16x16, 48x48, and 128x128 pixel PNG icons
   • Replace the placeholder files in the icons/ folder:
     • icons/icon16.png
     • icons/icon48.png
     • icons/icon128.png

   You can use any image editor or online icon generator to create simple highlight-themed icons.

3. Configure AI (Optional): Create a .env.config file in the root directory:

   OPENAI_API_KEY=your_openai_api_key_here
   AI_MODEL=gpt-4o
   AI_MAX_TOKENS=150
   AI_TEMPERATURE=0.8
   AI_TIMEOUT=10000
   

4. Load the extension in Chrome:

   • Open Chrome and go to chrome://extensions/
   • Enable "Developer mode" in the top right
   • Click "Load unpacked" and select the extension folder
   • The extension icon should appear in your Chrome toolbar

🌐 Browser Compatibility

• Chrome 88+ (Manifest V3)
• Edge 88+ (Chromium-based)
• Other Chromium-based browsers

🤝 Contributing

1. Fork the repository
2. Create a feature branch
3. Install dependencies: npm install
4. Make your changes
5. Run tests: npm test
6. Submit a pull request

Tests use Jest with jsdom and are located in the tests/ directory.

📄 License

This project is open source and available under the MIT License.

🆘 Support

If you encounter any issues or have feature requests, please create an issue in the repository.

Note: This extension stores all data locally in your browser. Only text sent for AI summarization is transmitted to OpenAI's servers.