Remove Duplicate Rows
Remove fully duplicate spreadsheet rows. 100% private in-browser processing with zero server uploads.
Remove Duplicate Rows
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Processed locally in browser memory · Never uploaded
View key capabilities & tips
Clean Excel (.xlsx) and CSV datasets by identifying and removing duplicate rows. Keep unique records, eliminate redundant data entries, and preserve header rows.
Key capabilities:
- Identifies duplicate rows across all columns or selected key columns
- Preserves the first occurrence and always protects the top header row
- Supports large datasets in XLSX and CSV formats with fast local processing
- Displays exact metrics showing total rows, duplicates found, and clean rows remaining
Tips:
- Ensure your spreadsheet has a clear header row so column names are recognized accurately.
- Review the summary count of removed duplicates before relying on the cleaned file.
- Always keep a backup copy of your original dataset before performing deduplication.