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CSV Grouped Sum

Group CSV rows by a text column and sum a numeric column.

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CSV group by sum online

Summarize a numeric field by a grouping column. This performs a grouped sum, not a multi-dimensional spreadsheet pivot table.

How to use it

Enter the source input or select Try example. Review Group column, Numeric column. Select Run tool and inspect the result before copying or downloading.

Options and example settings

Option	Choices / value	Example default
Group column	Enter a value	team
Numeric column	Enter a value	amount

Worked examples

Summarize a numeric field by a grouping column.

Worked example — CSV Grouped Sum

Settings: Group column: team; Numeric column: amount

Input:

team,amount
A,10
B,20
A,5

Output:

team,sum
A,15
B,20

The example output has 3 lines. Compare its order, separators and whitespace with the input before copying the result.

Limitations and common mistakes

This performs a grouped sum, not a multi-dimensional spreadsheet pivot table.

Frequently asked questions

How can I group CSV rows by a text column and sum a numeric column online?

Enter the source input or select Try example. Review Group column, Numeric column. Select Run tool and inspect the result before copying or downloading.

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.