📬 ReplAI – AI-Powered Email Reply Assistant

ReplAI is a full-stack AI email assistant designed to generate context-aware email replies based on the content and desired tone (e.g., professional, casual). It includes:

• 🌐 A web application built with Spring Boot (backend) and React with Vite (frontend), styled using Material UI.
• 🧩 A Gmail browser extension that integrates directly into the Gmail interface, adding an "AI Reply" button to the compose toolbox.
• 🤖 Integration with Gemini as the AI agent for generating intelligent responses.

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🚀 Features

• ✉️ Generate AI-powered replies to emails.
• 🎯 Choose the tone of the reply: Professional, Casual, etc.
• 🧩 Gmail extension for seamless Gmail integration.
• ⚡ Fast and responsive UI with Vite and Material UI.

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🧠 Tech Stack

• Frontend: React, Vite, Material UI
• Backend: Spring Boot (Java)
• AI Agent: Gemini
• Extension: Chrome Extension (Manifest V3)
• Deployment: GitHub Pages / Any Server

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🖥️ Web Application

The ReplAI web application allows users to:

• Input the original email content.
• Select the desired tone for the reply.
• Generate and copy the AI-generated reply.

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📎 Gmail Browser Extension

Enhance your Gmail experience with the ReplAI browser extension:

• 🔘 Adds an "AI Reply" button to the Gmail compose box.
• 📥 Automatically fetches the email content.
• 🤖 Generates contextual replies instantly based on tone selected by the user.

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📂 Project Structure

ReplAI/
├── email-writer-sb/ // Spring Boot API for AI reply generation
├── email-writer-react/ // React + Vite app
├── email-writer-extension/ // Chrome extension for Gmail integration
├── README.md

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🧰 System Prerequisites

Backend

• Java Development Kit (JDK) 21+
• Maven
• Environment Variables:
  • GEMINI_API_URL: https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key=
  • GEMINI_API_KEY: Your actual API key

Frontend

• Node.js (version 18 or above)

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🛠️ Setup Instructions

1. Clone the Repository

git clone https://github.com/rustyBot31/ReplAI.git
cd ReplAI

2. Backend Setup

• Open the folder email-writer-sb in your code editor.
• Navigate to the class EmailWriterSbApplication and click Run from the file.

3. Frontend Setup

• Open the folder email-writer-react in your code editor.
• Run the following commands in the terminal:

  npm install
  npm run dev

4. Gmail Extension Setup

• Navigate to chrome://extensions in your browser.
• Enable Developer Mode.
• Click Load Unpacked.
• Select the email-writer-extension folder inside the ReplAI directory.
• Pin the extension to your browser.

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🙌 Contributing

Contributions are welcome! Please open issues or submit pull requests for improvements, bug fixes, or feature suggestions.

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📝 License

This project is licensed under the MIT License.

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