Edit & Clean · browser workspace

Create Pivot Table from CSV - Summarize Data

Summarize CSV data by grouping and aggregating values. Sum, average, count.

Quick start

Built for summarize data by grouping and aggregating values.

Everything runs in your browser, so you can test the workflow with sample data when available before using production files.

Output: A new file or report produced locally in your browser.

Preparing your private workspace…

A summary table that groups data by one field and spreads values across columns.

Calculate Sum, Average, Min, Max, Count, and StdDev for numeric columns.

Count how often each value appears in a column.

Transform wide format to long format (unpivot columns to rows).

Swap CSV rows and columns in Excel, Python, or a browser, with practical checks for headers, uneven rows, data types, and file-size limits.

Use the symptom-specific walkthrough before changing a production file.

Determine whether your data needs a mechanical transpose or a grouped pivot before changing its rows and columns.