Multi-Column Key Deduplication Engine
CSV Duplicate Remover
Identify and remove duplicate spreadsheet records by specific key columns with case-insensitive matching in your browser.
Drop your CSV file here to deduplicate
Eliminate redundant records by entire row or specific matching criteria.
Initial Rows
0
Unique Kept
0
Duplicates Removed
0
Matching Criteria (Check columns to base duplicate checks on):
Frequently Asked Questions
Yes. Select the specific column checkbox (e.g., 'Email') to purge rows that share duplicate emails while ignoring differences in other columns.
Yes. When enabled, values like 'user@example.com' and 'USER@EXAMPLE.COM' are recognized as identical duplicates.
No. All deduplication calculations run directly inside your device's browser memory sandbox.