Data & Spreadsheets
CSV duplicate remover
Remove duplicate records from a CSV file using its complete rows.
Using this tool
Repeated rows can creep into exports when lists are joined or downloaded several times. This utility removes exact duplicate data rows while preserving the first header row.
When it is useful
Clean an exported list of contacts or transactions before importing it into another system, provided exact row matching is what you need.
How to get a reliable result
Paste CSV text or choose a CSV file, remove duplicates, then review and download the result. The tool understands quoted fields, including embedded commas and line breaks.
Limits to know about
Matching is exact, including differences in capitals or spaces. It is not a fuzzy match, does not choose duplicate records by ID, and may struggle with extremely large files.
Privacy and processing
The information you enter here is processed within your browser by this tool, without an account. Do not rely on unverified results for important legal, financial or business decisions.