データ&スプレッドシート

CSV Column Extractor

Pick specific columns from a CSV file and download the result — great for cleaning large datasets

Drop a CSV file or click to upload

Or Paste CSV

How it works

  • • Upload or paste a CSV — all columns are detected from the header row.
  • • Check the columns you want to keep — all other columns are discarded.
  • • Download the extracted CSV. Column order matches your selection order (left to right).
  • • All processing happens locally in your browser.

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CSV Column Extractor — Free Online Tool | FreeTool