CSV Column Extractor

What this tool does

CSV Column Extractor lets you check exactly which columns to keep from a CSV file, preserving their original left-to-right order regardless of check order, and downloads a trimmed-down CSV containing only those selected columns.

A wide CSV export (dozens of columns from a database or form tool) often has far more data than you actually need for a specific task, sharing or importing just the relevant fields means trimming it down first.

This tool lets you check exactly which columns to keep, preserving their original left-to-right order regardless of the order you check them in, then downloads a trimmed CSV with just those selected columns.

How to use CSV Column Extractor

1. Paste or upload your CSV data.
2. Check the columns you want to keep.
3. Review the extracted preview.
4. Download the extracted columns as a new CSV.

Tips for better results

• Extracted columns always keep their original order from the source file, regardless of the order you happen to check them in, so the output stays consistent and predictable.
• Unchecking every column except the ones you need is often faster than manually deleting unwanted columns in a spreadsheet, especially for a very wide export.
• This is a quick way to create a privacy-conscious export, keeping only non-sensitive columns (like name and department) while dropping sensitive ones (like salary or personal ID) before sharing.
• Combine this with the CSV Filter and Sort tool afterward if you also need to narrow down which rows are included, not just which columns.

Common use cases

• Trimming a wide database or form export down to just the fields you need.
• Creating a privacy-conscious export by excluding sensitive columns before sharing data.
• Preparing a CSV for import into a system that only expects specific fields.
• Simplifying a complex spreadsheet export for a colleague who only needs part of the data.

Common mistakes to avoid

• Expecting the output column order to follow click order; it always preserves the original source file’s left-to-right column order regardless of which order you checked boxes in.
• Forgetting to double-check a privacy-sensitive export actually excludes every column that should be excluded, review the extracted preview carefully before sharing the result.
• Not re-uploading a fresh file when switching to a different source CSV with a different column structure, the column checkboxes reflect whatever CSV is currently loaded.