A modern Chrome extension built with React, Vite, and Tailwind CSS for browsing history management and AI-powered chat assistance.

• Modern React UI: Built with React 18 and Vite for fast development and optimized builds
• Tailwind CSS: Beautiful, responsive design with modern styling
• History Management: View and interact with your browsing history across different time ranges
• AI Chat Assistant: Intelligent conversation about your browsing patterns
• Clickable URLs: All URLs open in new tabs when clicked
• Real-time Analysis: Get insights about your browsing habits
• Clean Architecture: Component-based structure with custom hooks

• Frontend: React 18 + Vite
• Styling: Tailwind CSS
• Icons: Lucide React
• Backend: Node.js + Express + Google Generative AI
• Build Tool: Vite with Chrome Extension optimizations

history-extension/
├── frontend/                 # React frontend
│   ├── src/
│   │   ├── components/      # React components
│   │   │   ├── Header.jsx
│   │   │   ├── HistoryTab.jsx
│   │   │   ├── ChatTab.jsx
│   │   │   ├── HistoryItem.jsx
│   │   │   ├── Message.jsx
│   │   │   ├── Footer.jsx
│   │   │   └── LoadingSpinner.jsx
│   │   ├── hooks/           # Custom React hooks
│   │   │   ├── useHistory.jsx
│   │   │   └── useChat.jsx
│   │   ├── App.jsx          # Main app component
│   │   ├── main.jsx         # React entry point
│   │   └── index.css        # Global styles
│   ├── sidebar.html         # Extension sidebar HTML
│   ├── package.json         # Frontend dependencies
│   ├── vite.config.js       # Vite configuration
│   ├── tailwind.config.js   # Tailwind configuration
│   └── postcss.config.cjs   # PostCSS configuration
├── server/                  # Backend API
│   ├── index.js            # Express server
│   └── package.json        # Backend dependencies
├── dist/                   # Built extension files
├── background.js           # Chrome extension background script
├── manifest.json           # Chrome extension manifest
└── icon.png               # Extension icon

• Node.js (v16 or higher)
• npm or yarn package manager
• Google API key for Generative AI (for backend)

# Clone the repository
git clone <repository-url>
cd history-extension

# Install frontend dependencies
cd frontend
npm install

# Install backend dependencies
cd ../server
npm install

Create a .env file in the server directory:

GOOGLE_API_KEY=your_google_generative_ai_api_key_here

Start the backend server:

cd server
node index.js

In another terminal, start the frontend development server:

cd frontend
npm run dev

The server will run on http://localhost:5000 and the frontend dev server will run on http://localhost:5173.

cd frontend
npm run build

This creates optimized files in the dist/ directory.

cd frontend
npm run build

1. Open Chrome and go to chrome://extensions/
2. Enable "Developer mode" (toggle in top right)
3. Click "Load unpacked"
4. Select the dist/ directory that was created in step 1

For AI chat functionality to work, start the backend server:

cd server
node index.js

The server must be running on http://localhost:5000 for the extension to communicate with the AI service.

• npm run dev - Start development server with hot reload
• npm run build - Build the extension for production
• npm run preview - Preview the built application

• node index.js - Start the Express server
• The server runs on port 5000 by default

• App.jsx: Main application with tab management
• Header.jsx: Beautiful gradient header with branding
• HistoryTab.jsx: History viewing and AI summary functionality
• ChatTab.jsx: Interactive chat interface
• HistoryItem.jsx: Individual history item with clickable URLs
• Message.jsx: Chat message with URL parsing and formatting
• LoadingSpinner.jsx: Reusable loading indicator

• useHistory: Manages browsing history state and API calls
• useChat: Handles chat functionality and conversation state

• All URLs are properly parsed and made clickable
• URLs open in new tabs using Chrome extension APIs
• No duplicate URL display issues
• Proper URL formatting with visual indicators

• Smooth animations and transitions
• Responsive design that works in the extension popup
• Loading states and error handling
• Clean, modern aesthetic with gradients and shadows

• Context-aware responses using browsing history
• Conversation history persistence
• Real-time typing indicators
• Auto-resizing text input

The vite.config.js is optimized for Chrome extensions:

• Outputs to ../dist directory
• Configured for ES2015 target compatibility
• Optimized bundle splitting and naming

Custom theme with:

• Primary/secondary color schemes
• Custom animations (fade-in, slide-up)
• Extension-specific responsive breakpoints

1. Development: npm run dev - Hot reloading for development (frontend only)
2. Production: npm run build - Optimized build for extension
3. Preview: npm run preview - Preview the built application
4. Server: node index.js - Start the backend API server

• Bundle Size: ~158KB (gzipped: ~51KB)
• CSS Size: ~12KB (gzipped: ~3KB)
• Load Time: Near-instant popup opening
• Memory Usage: Optimized React tree with minimal re-renders

• TypeScript: Add TypeScript for better type safety
• Testing: Unit and integration tests with React Testing Library
• Themes: Multiple color themes and dark mode
• Export: Export chat conversations and history summaries
• Offline: Offline capability with service workers

1. Fork the repository
2. Create a feature branch
3. Make your changes in the React components
4. Test the extension functionality
5. Submit a pull request

• Backend Dependency: The extension requires the backend server to be running on http://localhost:5000 for AI chat features
• API Key Required: Set up your Google Generative AI API key in the server's .env file
• URL Security: URLs are handled through Chrome extension APIs for proper security
• React Optimization: Components are optimized for the extension sidebar size
• Bundle Optimization: Tailwind classes are purged for optimal bundle size
• Development: Use npm run dev in frontend for development, and run node index.js in server directory