Column Extractor
Extract specific columns from CSV data.
Processed locally in your browser. Your data is never uploaded.
- Check the columns to keep — everything else is dropped.
- Rename each kept column's output header and reorder columns independently of their source position.
- Faster than deleting, renaming and reordering columns one by one in a spreadsheet.
- Runs in your browser — no upload.
Why this is private
- Processed locally in your browser. Your data is never uploaded.
- Open your browser's DevTools → Network tab while using this tool — you won't see a request carrying your input, because it never leaves your device.
- Nothing you enter is uploaded to a server or shared with us — the processing happens entirely on your device.
Overview
Extracts the columns you select from CSV data, with the option to rename and reorder them, discarding the rest.
How to use it
- 1Paste CSV data with a header row.
- 2Check the columns you want to keep.
- 3Edit each column's output name and use the up/down arrows to reorder them.
- 4Copy the resulting CSV.
Frequently asked questions
What people use it for
Share only the fields a partner needsStrip a customer export down to name and order ID before sending it.
Remove personal data before analysisDrop email, phone and address columns and keep the rest.
Match a target system's exact field names and orderRename columns to the headers an import tool expects and reorder them to match its column sequence.
Pull one column out as a listKeep a single column to feed into the SQL IN Clause Generator.
Related tools
All data toolsReady to use Column Extractor?
Column Extractor