Pivot tables are the fastest way to summarize data without writing formulas or using a spreadsheet application. This tool parses CSV text, groups rows by your chosen field, spreads another field across columns, and aggregates numeric values using your selected function. The result is a clean matrix showing totals at a glance.
The tool handles missing values gracefully: empty cells are skipped in sum and average calculations, counted as zero in count mode, and treated as null in min and max. Non-numeric values in sum or average mode are silently skipped. Row and column totals are optional and computed using the same aggregation function as the data cells.