Extract Columns from a CSV Online
Select and export one or more columns from a CSV, right in your browser.
Delimiter:
🔒 100% client-side — no data sent
Extract one or more columns from a CSV file to keep only the data you need, without opening a spreadsheet. The tool runs 100% in your browser, so your data is never sent online.
What is it for?
- ▸ Isolate an email column from a full export
- ▸ Keep only the necessary columns before an import
- ▸ Reduce a large CSV to the relevant fields for analysis
- ▸ Extract IDs to reuse them in a query
FAQ
How do I extract a column from a CSV file?
Paste your CSV, select the column or columns to keep by name or position, and the tool generates a new CSV containing only those columns.
Can I extract several columns at once?
Yes, you can select as many columns as needed. They are extracted in a single operation and keep their order in the resulting file.
Is the order of the extracted columns preserved?
Yes, the columns are returned in the order of the original file, and the other columns are simply removed without altering the kept data.