CSV Pivot Table Generator — Aggregation Tool
Group and aggregate CSV data by one or more columns to create summary pivot views. Supports Count, Sum, Average, Min, and Max aggregations with multi-column grouping. Paste or upload any CSV, select group-by columns and aggregation type, and download the pivot summary as a new CSV file. Runs entirely in your browser.
How to Use CSV Pivot Table Generator — Aggregation Tool
How to Use the CSV Pivot Table Generator
Step 1: Load Your CSV Data
Choose between two input modes:
- Paste — paste CSV text directly into the textarea
- Upload — click the upload area and select a
.csvfile from your computer
The tool automatically detects columns from the first row (header row) of your CSV.
Step 2: Select Group-By Columns
Check one or more columns under Group By. Rows with the same values in all selected columns will be merged into a single pivot group.
Example: grouping a sales CSV by both Region and Product creates one row per unique Region + Product combination.
Step 3: Choose an Aggregation
Select one of five aggregation functions:
| Aggregation | What it computes |
|---|---|
| Count | Number of rows in each group (no value column needed) |
| Sum | Total of all numeric values in the value column |
| Average | Mean of all numeric values in the value column |
| Min | Smallest numeric value in the value column |
| Max | Largest numeric value in the value column |
For Count, no value column is required. For all other aggregations, proceed to Step 4.
Step 4: Select a Value Column
When aggregating with Sum, Average, Min, or Max, choose the numeric column to aggregate from the Value Column dropdown. Group-by columns are excluded from this list.
The tool strips common numeric prefixes and separators ($, €, %, commas) before parsing, so currency and percentage columns work without preprocessing.
Step 5: Sort and Download
Enable Sort by value (desc) to rank groups from highest to lowest aggregated value — useful for finding top regions, best-selling products, or highest earners.
Click Download CSV to export the pivot summary as a new .csv file ready for use in Excel, Google Sheets, or any data tool.
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