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csv merge combine join vertical horizontal append

CSV Merger

Combine two CSV files into one. Supports vertical merge (append rows) and horizontal merge (append columns). Header row skip option is available.

USAGE

3 simple steps

  1. 1Paste the first CSV in the top input field
  2. 2Paste the second CSV in the bottom input field
  3. 3Choose merge direction and click Merge

FAQ

Frequently Asked Questions

Q. Can I merge CSVs with different numbers of columns?

A. Vertical merge works even with different column counts, though results may not be as expected. Horizontal merge pads shorter files with empty values.

Q. How are header rows handled?

A. For vertical merge, selecting 'Skip second header' removes the first row of the second CSV before merging.

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CSV ↔ JSON ConverterCSV Column ExtractorCSV Duplicate Processor