Free Duplicate Row Remover for CSV
Upload your CSV and remove duplicate rows instantly — exact match or by selected columns. Works for Excel files too. Your data never leaves your browser.
Drop your CSV file here, or click to browse
CSV and Excel files supported. Your data never leaves your browser.
Who uses Duplicate Row Remover?
Real teams solving real problems — see if your use case is here.
E-commerce Ops Manager
Retail / E-commerceExports an 80,000-row product catalog from Shopify after merging a supplier feed. Duplicate SKUs inflate inventory counts and break fulfilment workflows downstream.
Removes 3,200 duplicates in seconds, uploads the clean file to Shopify, then sets up Sohovi to catch duplicates automatically on every future feed.
CRM Administrator
Sales & MarketingPulls a HubSpot contact export before a campaign launch. Duplicate contacts mean double-emails, inflated send costs, and GDPR/CAN-SPAM compliance risk.
Deduplicates on the email column specifically. 94 duplicate contacts removed. Campaign sends cleanly with no compliance exposure.
Bookkeeper
Accounting / FinanceBank statement export has identical transaction rows where a payment crossed midnight. QuickBooks import fails with a 'duplicate reference ID' error and won't proceed.
Finds 11 duplicate transactions instantly. Exports clean file. Import succeeds and month-end close stays on schedule.
Data Analyst
Healthcare / ResearchSurvey export from Qualtrics has duplicate respondent IDs — the form was submitted twice by the same participants. Duplicates skew mean scores and invalidate the analysis.
Deduplicates on respondent_id. Removes 47 rows. Statistical analysis runs correctly and the research report is submitted on time.
How to remove duplicate rows from a CSV
Upload your CSV or Excel file
Drag and drop your file or click to browse. The tool reads it entirely in your browser — nothing is sent to any server.
Choose your deduplication columns
Leave all columns unchecked for exact-row matching. Or select specific columns — great for removing duplicates by customer email, order ID, or product SKU while preserving other differences.
Remove duplicates and download
Click 'Remove duplicates' and your cleaned CSV is ready in seconds. Preview the removed rows before downloading. The original row order is preserved.