CSV Duplicate Remover
Remove exact duplicate CSV rows while preserving quoted fields and multiline values. This is not fuzzy matching or a database merge.
Let’s make that file useful.
Drop your file here, or choose one from your device.
Up to 100 MB
Keep your original file and review the result before using or sharing it. Privacy & file handling
How to use this tool
- Choose your CSV file and the correct delimiter.
- Compare complete rows or select the column to match.
- Review the duplicate count and download the cleaned CSV.
Example
Remove repeated rows in a customer export while preserving the header.
Supported formats
CSV, TSV → CSV
Limits and review
Remove exact duplicate CSV rows while preserving quoted fields and multiline values. This is not fuzzy matching or a database merge.
Keep your original and check the result. Automated checks do not replace human review or certify legal compliance.
Privacy
Files are not saved as a processing history. Server tasks use temporary folders with cleanup on completion, failure and cancellation. Infrastructure retention is not certified.
PrivacyFrequently asked questions
Is registration required?
No. These tools are free to use without creating an account.
What can this tool do, and what are its limits?
Remove exact duplicate CSV rows while preserving quoted fields and multiline values. This is not fuzzy matching or a database merge.
How are my files handled?
Files are not saved as a processing history. Server tasks use temporary folders with cleanup on completion, failure and cancellation. Infrastructure retention is not certified.