Remove duplicate rows from CSV files with our powerful online CSV duplicate remover tool. Our advanced deduplication algorithm identifies and eliminates duplicate records while preserving your data integrity. Clean CSV data, delete duplicate entries, and merge duplicate CSV records instantly - no software installation required, works directly in your browser.
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Maximum file size: 100MB
When unchecked, "John" and "john" will be treated as duplicates
When unchecked, keeps the last occurrence of duplicates
Leave empty to check all columns
Our CSV duplicate remover tool makes it easy to clean your data in three simple steps
Drag and drop your CSV file or click to browse. Supports files up to 100MB with millions of rows.
Choose case sensitivity, which columns to compare, and whether to keep first or last occurrences of duplicates.
Get your cleaned CSV file with duplicate rows removed instantly. Files are automatically deleted for your privacy.
Remove duplicates from CSV files for various business and personal use cases
Clean duplicate customer records from CRM exports and mailing lists
Remove duplicate product entries from e-commerce inventory files
Deduplicate email addresses for marketing campaigns and newsletters
Clean survey responses and research datasets by removing duplicate entries
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