Tech Stack: Spring Boot | React | Material UI | Chrome Extension | Google Gemini API

The Smart Email Assistant is an AI-powered tool that automatically generates email replies based on incoming email content and the preferred tone (professional, friendly, strict, etc.).

Key Features:

• AI-generated email responses using Google Gemini API
• Backend implemented with Spring Boot for API handling
• Frontend built with React and Material UI
• Chrome Extension for seamless integration with webmail platforms
• Supports copy-to-clipboard and dynamic tone selection

• REST API endpoint to generate replies (/api/mail/generate)
• Uses WebClient to communicate with Gemini API
• Prompts are dynamically constructed based on original email content and selected tone
• Environment variables store API keys and base URLs for security

• Simple UI to paste email content, select tone, and generate replies
• Axios is used to call the backend API
• Displays generated reply with option to copy to clipboard
• Responsive and user-friendly interface

• Injects JavaScript into webmail platforms to extract email content
• Uses MutationObserver to dynamically detect email content divs
• Sends extracted emails to backend for AI-generated replies

cd email-writer-kt
mvn spring-boot:run

cd frontend
npm install
npm start

• Open Chrome → chrome://extensions → Load unpacked → select chrome-extension/ folder

Smart-Email-Assistant/
│
├─ email-writer-kt/ (Spring Boot)
│   ├─ controller/
│   ├─ model/
│   └─ service/
│
├─ email-frontend-project/ (React + Material UI)
│   ├─ components/
│   ├─ App.js
│   └─ index.js
│
├─ hello-world-ext/
│   ├─ manifest.json
│   └─ content.js
│
└─ README.md

Key Highlights

• Fully modular and scalable architecture.

• AI-powered, tone-aware email reply generation.

• Seamless integration into existing email platforms via Chrome Extension.

• Secure handling of API keys and configurable backend URLs.