CloudCopier

Cross-device clipboard sync between Windows and iOS. Copy on one device, paste on another.

How it works

Three components:

• Windows app (C# WinForms) - monitors clipboard changes, syncs with server
• Node.js server - stores clipboard data, handles API requests
• iOS app (Swift/SwiftUI) - monitors clipboard changes, syncs with server

Both apps detect local clipboard changes and upload to server. Both apps poll server and update local clipboard when remote changes are detected.

Features

• Syncs text and images
• API key authentication
• Works offline (queues changes)
• Native apps, no web wrappers
• Self-hostable

Setup

Server

cd server
npm install
npm start
# or with Docker
docker build -t cloudcopier .
docker run -p 3000:3000 -e API_KEY=your-secret-key cloudcopier

Windows Client

cd windows
dotnet build
dotnet run

Configure server URL in config.json.

iOS App

Open ios/ClipboardSync.xcodeproj in Xcode. Update server URL in Config.swift, then build and run on device.

API

Authentication

Include X-API-Key header in all requests.

POST /clipboard

{
  "formats": {
    "text": "content here",
    "image": "base64-data"
  },
  "source": "windows"
}

GET /clipboard

Returns latest clipboard data with timestamp and format info.

GET /health

Server health check.

Configuration

Server Environment Variables

• PORT - Server port (default: 3000)
• API_KEY - Authentication key (required)

Client Configuration

iOS (ios/ClipboardSync/Config.swift):

struct AppConfig {
    static let serverUrl = "https://your-server.com"
    static let apiKey = "your-api-key"
    static let pollingInterval: TimeInterval = 2.0
}

Windows (windows/config.json):

{
  "serverUrl": "https://your-server.com",
  "apiKey": "your-api-key",
  "pollingInterval": 2000
}

Deployment

Works on Railway, Heroku, AWS, or anywhere that runs Node.js. The included Dockerfile makes container deployment straightforward.

TODO

• WebSocket support for real-time sync
• File/image support improvements
• Android client
• Clipboard history
• End-to-end encryption

License

MIT