Gemini Chat Exporter

A Chrome extension that allows you to export your Google Gemini chat conversations to JSON format for backup, analysis, or migration purposes.

Features

• Export Full Chat History: Automatically scrolls to load complete conversation before export
• Export All Chats: Export current conversation plus sidebar chat history
• Auto-Scroll Loading: Handles lazy-loaded content by progressive scrolling
• JSON Format: Clean, structured data that's easy to process
• Preserves Formatting: Maintains code blocks and text structure
• Privacy-First: All processing happens locally in your browser
• Progress Feedback: Real-time updates during long conversation loading
• Error Handling: Comprehensive feedback on success/failure

Installation

Method 1: Download and Install

1. Download the extension:

   • Clone this repository or download as ZIP
   • Extract to a folder (e.g., gemini-chat-exporter)

2. Load in Chrome:

   • Open Chrome and navigate to chrome://extensions/
   • Enable "Developer mode" (toggle in top right corner)
   • Click "Load unpacked"
   • Select the gemini-chat-exporter folder

3. Pin the extension:

   • Click the puzzle piece icon in Chrome toolbar
   • Find "Gemini Chat Exporter" and click the pin icon

Usage

1. Navigate to Gemini:

   • Go to gemini.google.com
   • Open a chat conversation

2. Export your chats:

   • Click the Gemini Chat Exporter icon in your toolbar
   • Choose your export option:
     • Export Full Chat History: Automatically loads complete conversation via scrolling
     • Export All Chats: Downloads current chat + sidebar history
   • Note: Full history export may take 30-60 seconds for long conversations

3. Access your data:

   • Files download as JSON format
   • Filename includes the current date
   • Open with any text editor or JSON viewer

Export Format

The exported JSON includes:

{
  "export_info": {
    "timestamp": "2024-01-20T10:30:00.000Z",
    "source": "Gemini Chat Exporter v1.0.2",
    "total_chats": 1,
    "total_messages": 10
  },  "chats": [
    {
      "id": "current-chat-1234567890",
      "title": "Chat about JavaScript",
      "timestamp": "2024-01-20T10:30:00.000Z",
      "url": "https://gemini.google.com/chat/...",
      "messageCount": 10,
      "messages": [
        {
          "role": "user",
          "content": "How do I create a Chrome extension?",
          "timestamp": "2024-01-20T10:30:00.000Z",
          "word_count": 7
        },
        {
          "role": "assistant", 
          "content": "To create a Chrome extension...",
          "timestamp": "2024-01-20T10:30:00.000Z",
          "word_count": 150
        }
      ]
    }
  ]
}

File Structure

gemini-chat-exporter/
├── manifest.json          # Extension configuration
├── popup.html            # Extension popup interface
├── popup.js              # Popup functionality
├── content.js            # Main extraction logic
├── README.md             # This file
├── LICENSE               # MIT License
└── .gitignore           # Git ignore rules

Technical Details

• Manifest Version: 3 (latest Chrome extension standard)
• Permissions: activeTab, storage
• Host Permissions: https://gemini.google.com/*
• Content Script: Runs on Gemini pages to extract chat data
• Popup Interface: Provides user controls and status feedback

Browser Compatibility

• ✅ Google Chrome (Recommended)
• ✅ Microsoft Edge (Chromium-based)
• ✅ Brave Browser
• ✅ Other Chromium-based browsers
• ❌ Firefox (uses different extension format)
• ❌ Safari (uses different extension format)

Privacy & Security

• Local Processing: All chat extraction happens in your browser
• No Data Collection: Extension doesn't send data to external servers- No Analytics: No tracking or usage statistics collected
• Open Source: Full source code available for review

Troubleshooting

Extension Not Working?

1. Ensure you're on gemini.google.com
2. Refresh the page after installing the extension
3. Check Chrome DevTools Console (F12) for errors

No Messages Found?

1. Scroll through the chat to load all messages
2. Try refreshing the page and reopening the chat
3. Google may have updated their interface - please file an issue

File Download Issues?

1. Check Chrome's download settings
2. Ensure pop-ups are allowed for the extension
3. Try right-clicking and "Save As" if auto-download fails

Export Errors?

1. Wait for the page to fully load before exporting
2. Try exporting current chat first, then all chats
3. Large chat histories may take longer to process

Contributing

We welcome contributions! Please see our Contributing Guidelines for details.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Disclaimer

This extension is not affiliated with Google or the Gemini AI service. It's an independent tool created to help users export their own chat data.

Changelog

v1.1.0

• Major Feature: Full Chat History Export
• Auto-scroll functionality to load complete conversations
• Handles lazy-loaded content and infinite scroll
• Progress feedback during long conversation loading
• Updated UI with better user guidance
• Improved error handling for scroll operations

v1.0.4

• Clean formatting and duplicate removal
• Prevent duplicate user text extraction
• Improved assistant response formatting
• Remove markdown bold markers
• Better text cleanup and formatting

v1.0.3

• Fixed extraction based on debug analysis
• Proper separation of user queries and model responses
• Correct extraction using USER-QUERY and MODEL-RESPONSE elements

v1.0.2

• Enhanced DOM selectors for current Gemini interface
• Better message detection with fallback patterns
• Improved content extraction and role detection

v1.0.1

• Initial release
• Export current chat functionality
• Export all chats functionality
• JSON format with metadata
• Error handling and user feedback

Support

If you find this extension helpful, please:

• ⭐ Star this repository
• 🐛 Report bugs via GitHub Issues
• 💡 Suggest features via GitHub Issues
• 🤝 Contribute code via Pull Requests

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Note: Google may update the Gemini interface, which could require updates to the extension. We'll do our best to keep it compatible with the latest version.