Tool 07 Files are processed locally in your browser
Duplicate Remover
Detect duplicates by a key column and keep only the first occurrence. Filtered rows are exported as a clean new sheet.
1. Upload file
Drag Excel files here, or click to browse
Supports .xlsx / .xls, multiple files; processed locally in your browser
FAQ
Which row is kept after deduplication?
The first occurrence of each key value is kept; later duplicates are filtered out.
What happens to rows with blank keys?
Blank keys follow the same rule: the first blank is kept, subsequent blanks are treated as duplicates.
Does deduplication change row order?
No. Kept rows are exported in their original order.