How to extract columns from a CSV
To extract columns, paste your CSV into the tool, select the headers you want to keep, and export the filtered result as CSV or JSON. Because the extractor runs in your browser, the data never leaves your device and there is no upload step.
You can select a single column or several at once, which makes it fast to pull just the fields you need out of a wide spreadsheet export.
- Paste CSV with a header row
- Select the columns you want to keep
- Export the filtered result as CSV or JSON
Why this beats spreadsheet cleanup
When the only job is to keep a few columns, a narrow browser tool is faster than importing the file into a spreadsheet app, hiding or deleting columns, and re-exporting. You skip the round trip and get exactly the fields you asked for.
It is also tidier for repeatable tasks: paste, pick, export. There is no formula, no manual column deletion, and no risk of an accidental cell edit changing your data.