A LITTLE HELP FOR YOUR NEXT TASK
CSV Duplicate Remover
Remove duplicate rows using selected keys, keep first or last matches and review removed rows separately.
Private by design
Your inputs stay on your device and are not sent to our servers. Optional usage analytics does not receive your files or tool inputs.
Preparing your local workspace…
How to use CSV Duplicate Remover
- Open your table and select one or more columns that identify a duplicate.
- Choose first or last occurrence and optional case or whitespace normalization.
- Prepare the result. Inspect both kept and removed rows, then export the desired table.
What are the limits of CSV Duplicate Remover?
Matching uses the selected column values, not fuzzy similarity. Case and whitespace are preserved unless explicitly ignored. Up to 5 MB, 25,000 rows and 200,000 cells; original files remain unchanged.