CSV Pivot & Transpose Utility (Format Changer)

Restructure your data from long to wide format (pivot) or simply swap rows and columns (transpose).

Restructure Setup

Pivot Configuration

E.g., `Customer ID`.

E.g., `Product Category`.

E.g., `Sale Amount`.

Restructured Data Preview

About This Tool

The CSV Pivot & Transpose Utility helps you restructure your dataset into new formats without using Excel or writing code. You can convert long-format datasets into wide pivot tables or simply transpose your rows and columns. Everything runs directly in your browser, keeping your data private and the experience fast even for large files.

Key Features:

  • Two Modes: Pivot (long → wide) and Transpose (swap rows/columns).
  • Browser-Based Processing: No servers, no uploads - data stays on your device.
  • Full Column Control: Choose Identifier, Pivot, and Value columns for custom pivot tables.
  • Aggregation Options: COUNT, SUM, AVERAGE (MVP = SUM), or FIRST occurrence.
  • Smart Preview: View the first 20 rows of the transformed result.
  • One-Click Export: Automatically downloads the fully processed CSV output.

How to Use

  1. Upload a CSV File: Load your source CSV using the file selector. The tool will automatically detect headers.
  2. Choose an Operation Mode: Select Data Pivot to convert long-format data into wide-format tables, or choose Transpose to swap rows and columns.
  3. If Using Pivot Mode: Select the required fields:
    • Identifier Column → becomes the rows.
    • Pivot Column → becomes the new columns.
    • Value Column → becomes the cell values.
    • Aggregation → COUNT, SUM, AVERAGE (MVP = SUM), or FIRST.
  4. Run the Process: Click Process Data & Export to generate the transformed output.
  5. Review the Output: A preview (first 20 rows) appears in the console area for verification.
  6. Download the Result: The processed CSV automatically downloads with the correct operation name.