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Duplicate Row Remover
Remove exact duplicate rows from a CSV file, keeping the first occurrence. Free online tool that works entirely in your browser — no upload required.
Select fileor drop files here
Files stay on your deviceUp to 100MB per fileNo account needed
Help with this tool
Is removing duplicate rows with PDFPilot really free?
Yes. Duplicate Row Remover is completely free to use, with no sign-up or account required.
Are my files uploaded to a server?
No. The deduplication runs entirely in your browser. Your file is never uploaded to PDFPilot's servers.
Is the header row ever counted as a duplicate?
No — the header row is always kept as-is, even if a data row later happens to match it exactly.
What counts as a duplicate?
A row where every cell exactly matches another row's corresponding cell — case-sensitive and whitespace-sensitive. "Alice" and "alice " are treated as different.
Which occurrence is kept when duplicates are found?
The first one — later exact matches are removed, preserving the original row order otherwise.
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