Remove Duplicate Rows
Remove fully duplicate spreadsheet rows.
Remove Duplicate Rows
About Remove Duplicate Rows
Clean Excel (.xlsx) and CSV datasets by identifying and removing duplicate rows. Keep unique records, eliminate redundant data entries, and preserve header rows.
How to use Remove Duplicate Rows
Add your file
Choose a file or drag it onto the upload box. We check that the file type and size are supported.
Pick your options
Change the settings shown next to the file if you need to. The defaults work for most files.
Download the result
Click the main button, then download your new file. Check it before you share or submit it.
What it does
- ✓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
When to use it
Remove duplicate contact entries, email signups, and CRM export records.
Eliminate duplicate SKU listings and stock entries before uploading to online stores.
Strip accidental double submissions from survey response datasets.
Clean duplicate event logs and transaction records for accurate analytics.
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.