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.
D
CSV tool
Remove Duplicate CSV Rows Online
Choose key columns, preview the duplicate count and download a cleaned CSV in a focused workflow.
● 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
- Instant duplicate estimate
- Key-column selection
- Safe local export
PapaTool does not execute macros, formulas, embedded scripts or external workbook links.
Common questions
CSV Duplicate Remover 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.
Which copy is kept?
By default the first occurrence is kept. You can switch to the last occurrence or remove every duplicated group.
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