What does CSV Rows to Columns do?

It converts row-oriented CSV data into column-oriented format. Each original row becomes a column, making it easy to view data by field rather than by record.

What is "Filter comment lines"?

When enabled, lines starting with # or // are excluded from processing. This is useful for CSV files that contain inline comments.

How are missing values handled?

If rows have different column counts, missing cells are filled with the "Empty cell value" you specify (empty by default) before conversion.

Yes. All processing happens entirely in your browser. No data is ever sent to any server.

CSV Rows to Columns Converter

Convert CSV rows to columns online. Transform row-oriented CSV data into column format. Supports custom delimiters, fill values, comment filtering. Browser-based processing.

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