Column Extractor
Extract CSV columns by name into clean lists. Pull email and name columns from pasted CSV in seconds — local parsing, free, no signup.
How to Use the Column Extractor
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Frequently Asked Questions
By name or index?
By header name only (email) — enter one or more names separated by commas. Headerless files treat the first row as headers, so add one first.
Duplicates kept?
Yes — extracted rows keep original order and duplicates. There is no built-in dedupe pass.
Do extracted columns upload?
No — extraction runs locally in your browser. Very large pastes may slow the tab, so split huge files first.
Is CSV data uploaded?
No — parsing runs locally in your browser. Data never leaves your device.
Does output order follow my CSV or my typed list?
Your typed list wins: typing email,name returns the email column first even if name leads the CSV. Unknown names are skipped silently; zero matches raises a No matching columns error.
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Last updated October 2026