txtconv

A web service to convert text files from Simplified Chinese to Traditional Chinese.

Version 2.0

Built with modern web technologies for better performance and scalability:

• Next.js 14 with App Router
• OpenCC for Chinese text conversion
• Vercel Blob for file archiving
• TypeScript for type safety
• Bulma CSS for styling

Features

• Drag-and-drop file upload
• Real-time conversion progress with SSE
• Multiple file processing with sequential downloads
• File validation (25MB limit, blocks non-text files)
• Automatic file archiving to Vercel Blob
• Character encoding detection

Getting Started

Prerequisites

• Node.js 20+
• Vercel Blob token (for file archiving)

Installation

npm install

Environment Setup

Create a .env file based on .env.example:

BLOB_READ_WRITE_TOKEN=your_vercel_blob_token

Development

npm run dev

Open http://localhost:3000 in your browser.

Build

npm run build
npm start

Testing

# Unit tests
npm test

# E2E tests
npm run test:e2e

Deployment

This application is optimized for deployment on Vercel:

1. Connect your repository to Vercel
2. Add BLOB_READ_WRITE_TOKEN to environment variables
3. Deploy

License

MIT License - see LICENSE file for details