Duplicate Finder & Remover

Find duplicate business keys and export a cleaned dataset.

Make it work with your data.

CSV data

Or choose a CSV fileLocal processing · up to 2 MB / 50,000 rows

Duplicate key columns

Use Ctrl / Command to select multiple columns.

Rows to keep

Ignore leading/trailing spacesIgnore letter case

HOW TO USE IT

Duplicate Finder & Remover

Choose the columns that define a duplicate. Select which occurrence to keep, inspect the result, and download the cleaned CSV.

What to know

First and last refer to the current CSV row order. The tool does not infer recency from a date field. Empty selected keys are treated as equal. Normalization affects matching only; original cell values are preserved.

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