CSV Deduplicator

Remove duplicate CSV rows from pasted data while keeping the first occurrence.

Paste CSV:

Upload CSV or text file:

Removes duplicate CSV rows using all columns or selected columns.

Compare by:Columns for matching:

Header row:Keep:

Input rows0

Removed0

Output rows0

Free Online CSV Deduplicator

Use this browser-based tool to remove duplicate CSV rows from pasted data while keeping the first occurrence. No account required.