How to use
A direct local workflow
- Choose your CSV file from this device.
- Review the detected structure and choose only the options you need.
- Run the operation, inspect the preview and download the local result.
C
CSV tool
Clean CSV Files Online
Remove empty rows, duplicates, extra spaces and formatting problems from CSV files without uploading your data.
● Local processingNo uploadFree
Choose a CSV file
Drag and drop here, or choose from your device.
.csv · Up to 50 MBDesigned for
Practical spreadsheet jobs
- Composable cleaning steps
- Undo and reset
- Before-and-after preview
PapaTool does not execute macros, formulas, embedded scripts or external workbook links.
Common questions
CSV Cleaner FAQ
Are my spreadsheet files uploaded?
No. PapaTool reads, transforms and exports your file inside this browser tab. File contents are never sent to PapaTool servers.
Can I reuse cleaner settings?
Yes. PapaTool stores the selected step configuration locally, but never stores your source file.
How does CSV injection protection work?
On export, cells beginning with =, +, - or @ can be prefixed with an apostrophe so spreadsheet apps treat them as text.
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