Toolzy

CSV Column Extractor

Paste or upload a CSV file, pick the columns you need, and export a trimmed-down CSV instantly.

Input
Columns to keep
Output

Drop in any CSV, choose your delimiter, and check off exactly the columns you want to keep. Everything runs locally in your browser, so your data never leaves your device.

How to use

  1. Paste your CSV text or upload a .csv file.
  2. Select the delimiter and check the columns to keep.
  3. Copy or download the filtered CSV.

Frequently asked questions

Does this upload my file anywhere?
No. Parsing and filtering happen entirely in your browser; nothing is sent to a server.
Can I use a delimiter other than comma?
Yes, choose comma, semicolon, tab, or pipe from the delimiter dropdown.
What happens to quoted fields with commas inside them?
Quoted CSV fields are parsed correctly and re-quoted in the output when needed.

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