Long to Wide Data Converter

Convert long format data to wide format data (spreadsheet format)

Step 1: Upload Your CSV File

Select a CSV file with long format data. The tool will convert it to wide format where each series becomes a separate column.

About Long to Wide Conversion

What is Long vs Wide Format?

Long format has each observation on its own row with a key-value structure, while wide format has multiple columns for different variables in a spreadsheet-like layout.

Wide format is often preferred for data analysis and visualization tools that expect data in a tabular format. Converting from long to wide format can make data easier to work with in spreadsheets and many analysis tools.

Learn more about wide vs long data formats →

When to Use This Conversion
  • Preparing data for spreadsheet analysis
  • Creating pivot tables and aggregations
  • Data visualization tools requiring wide format
  • Converting time series data to matrix format
Privacy
  • All processing happens locally in your browser
  • No data is uploaded to our servers