CSV Cleaner
Trim CSV cells and optionally remove duplicate rows in your browser. Paste CSV text to normalize whitespace and deduplicate repeated rows. This lightweight tool handles common quoted fields but is not a full spreadsheet parser.
Use the tool
Enter your values, then run it. The result is generated in your browser.
Result
Calculated
How to use CSV Cleaner
- Paste CSV including headings if present.
- Choose header and duplicate options.
- Verify output column alignment in your spreadsheet application.
Formula and assumptions
CSV parsing respects common quoted cells and doubled quote escapes. Edge whitespace is trimmed; duplicate rows can be removed while preserving an optional header.
This does not evaluate formulas, infer data types, or repair every malformed CSV file.
Frequently asked questions
Does it handle quoted commas?
It supports common double-quoted cells and escaped double quotes.
Will it change cells?
It trims leading and trailing whitespace and can remove repeated rows.
Is data uploaded?
This static tool does not include a CSV upload endpoint.
About this tool
Paste CSV text to normalize whitespace and deduplicate repeated rows. This lightweight tool handles common quoted fields but is not a full spreadsheet parser.
No account is required. The tool runs in this browser and this starter build has no form-submission backend. See the method and assumptions before relying on estimates.