Free · No signup · Private — runs in your browser

Remove Duplicate Rows

Clean a spreadsheet by removing identical rows in one click. Every sheet is scanned and exact duplicate rows are dropped, keeping the first occurrence — all in your browser.

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Drop your .xlsx, .xls or .csv here or click to browse

Exact duplicate rows are removed. Converted on your device.

Need to edit, not just convert? Open the full Gridoly editor →

How it works

1Add your fileDrag an .xlsx, .xls or .csv onto the box, or click to choose one.

2We de-duplicateEach sheet is scanned and exact duplicate rows are removed, keeping the first.

3Download clean fileDownload a tidy .xlsx with the duplicates gone.

Frequently asked questions

What counts as a duplicate?

A row whose every cell exactly matches an earlier row. The first occurrence is kept.

Does it check all sheets?

Yes — duplicates are removed within each sheet of the workbook.

Is my data uploaded?

No. The cleanup happens entirely in your browser.

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