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Merge CSV files

Stack several CSV files into one. Columns are matched by name, and you are told if the headers don't agree.

CSVCSVSeveral CSVs to CSV

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How it works

Add two or more CSV files.
Check the warnings about any columns that don't match.
Download the combined file.

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Remove duplicate rowsCSVCSVCSV to CSV TSV ↔ CSVTSVCSVTSV to CSV and back CSV ↔ JSONCSVJSONCSV to JSON and back

File tools that run on your machine. Zero file bytes out.

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