Remove CSV Duplicates

Remove duplicate CSV rows by full row or one column.

Drop CSV file here

Remove duplicate rows from CSV files. Up to 20 MB.

Compare all columns

Upload a CSV and remove duplicates by comparing every column or a single key column. The first occurrence is kept; row order of survivors is unchanged.

Limitations

Comparison is exact (case and trailing spaces matter). Empty values in a key column share one key — only the first empty key row remains.

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FAQ

The first occurrence of each duplicate row is kept.