A web tool that helps you instantly polish and refine your emails using AI.
See grammar and style feedback, and get real-time suggestions to make your message clearer and more professional.

Many non-native speakers struggle to write professional emails. This project aims to provide instant, line-by-line AI-powered grammar and tone feedback, helping users communicate more effectively.

Try it live here!

• Paste your draft email and see line-by-line grammar, style, and tone analysis.
• Instant AI-powered suggestions to refine or rephrase each sentence.
• Visual feedback:
  • Correct sentences highlighted in green
  • Sentences that could be simplified highlighted in yellow, with suggested corrections and explanations
  • Sentences needing improvement highlighted in red, with suggested corrections and explanations
• No login or sign-up required — just paste, analyze, and improve.

• Frontend: React + Vite + Axios
• Backend: Flask
• Deployment: Vercel (frontend), Railway (backend)

1. Clone & Install

   git clone https://github.com/seungwoo900/email-helper.git
   cd email-helper
   npm install

2. Run Locally

   npm run dev

   Navigate to http://localhost:5173 to test the app.

Set up your .env.local file in the root:

• VITE_API_BASE_URL=http://localhost:5000
• VITE_PERPLEXITY_API_KEY='YOUR_API_TOKEN_KEY'