Lucky Spinner

A web-based spinning wheel application for making random selections from uploaded data. Perfect for raffles, team selections, or any situation where you need fair random choice.

Features

• Upload Excel files (.xlsx/.xls) with participant names and weights
• Interactive spinning wheel with smooth animations
• Weighted selection (some participants can have higher chances)
• Track selected winners
• Export results to CSV
• Reset functionality to start fresh

How to Use

1. Upload Data: Click the upload area and select your Excel file

   • Column A: Participant names
   • Column B: Number of entries (weight)

2. Spin the Wheel: Click "SPIN THE WHEEL!" to make a selection

3. View Results: Winners appear in the right panel with selection details

4. Export Data: Download your winners list as a CSV file

5. Reset: Start over with all original participants

Excel File Format

Your Excel file should look like this:

Name            | Occurrences
----------------|------------
John Smith      | 1
Sarah Johnson   | 3
Mike Wilson     | 2

The "Occurrences" column determines how many times that person's name appears in the wheel (higher number = better odds).

Development

Built with React, TypeScript, and Vite. Processes Excel files client-side using the XLSX library.

Local Development

npm install
npm run dev

Deployment

The app is deployed on Vercel as a static site. All processing happens in the browser - no backend required.

Technical Notes

• Data is stored locally in your browser session
• No data is sent to external servers
• Files are processed entirely on your device
• Winners list resets when you refresh the page