AI-Powered Email Assistant Chrome Extension

Smart replies, summaries, templates, and voice input for Gmail and Outlook.

Replybox preview

Project Overview

A sophisticated Chrome extension that enhances email productivity by leveraging AI to assist users with email composition and management in Gmail and Outlook. The extension integrates seamlessly to provide intelligent features while staying non-intrusive.

Intelligent Email Analysis & Response Generation

  • Real-time email analysis and smart summaries
  • AI-powered response generation with tones: Formal, Casual, Apologetic, Persuasive
  • Context-aware replies that maintain conversation continuity
  • Multiple lengths: short, medium, long

Advanced Integration

  • Seamless Gmail and Outlook integration
  • Side panel UI for enhanced UX
  • Real-time email content sync
  • Voice input for hands-free composition

Smart Templates & Customization

  • Pre-built templates (Meetings, Sales, Support)
  • Custom templates with management
  • Personalized response customization
  • Draft management with auto-save

Security & Authentication

  • Secure Google OAuth2.0
  • Local storage encryption
  • Privacy-first: no email content stored
  • Robust error handling and validation

User Experience

  • Intuitive, material-inspired UI
  • Real-time response preview
  • Easy formatting and editing
  • Progress indicators, loading states, toast notifications

Technical Implementation

  • Vue 3
  • Tailwind CSS
  • OpenAI API
  • Chrome Identity API
  • OAuth 2.0
  • Chrome Storage API (encrypted)
  • Chrome Message Passing API

Performance Optimizations

  • Efficient DOM manipulation
  • Optimized background scripts
  • Lazy load non-critical components
  • Caching for frequently used data

Architecture Highlights

  • Modular component design
  • Event-driven architecture
  • Secure communication protocols
  • Robust error handling system
  • Cross-browser compatibility

Tech Stack Highlights

Vue 3Tailwind CSSOpenAI APIChrome Extensions (MV3)OAuth 2.0TypeScript
Replybox brand
“Replybox streamlines our customer support emails. The AI suggestions feel on-brand and save hours weekly.”
Operations Lead, SaaS company