DataDetox / CSV Cleaner

CSV Cleaner

Paste or drop a CSV, choose what to fix, and copy the clean version. Everything runs in your browser; nothing is uploaded.

1. Add your data

Drop a .csv file here, or Choose file

Separator

2. Choose fixes

Trim spaces around values Collapse repeated spaces inside values Remove empty rows Remove duplicate rows Treat “Ann” and “ann” as duplicates Remove columns with no data First row is a header Tidy headers (lowercase_with_underscores)

Columns to keep — click a name to remove it

Columns appear once you add data.

3. Review and copy

What this tool fixes

Exports from spreadsheets, databases and forms often carry duplicate rows, blank rows, stray spaces and empty columns. This tool cleans all of that up in your browser, without uploading your data anywhere.

Is my data private?

Yes. Your file is processed entirely on your device. Nothing is sent to a server.