What this tool does
Remove repeated CSV rows using all columns or only the fields you choose, such as date, amount and reference. It creates a separate CSV download and does not modify the source file.
- Choose matching columns
- Preserve the first occurrence
- See removed-row counts
- Download a clean CSV
How to use it
- Select a supported file.
- Map or choose columns when the tool asks for them.
- Convert the file and inspect the preview.
- Download the CSV only after checking the results.
Privacy: The selected financial file is not included in account, payment or advertising requests.
Questions about CSV Duplicate Remover
How are duplicates identified?
Rows are treated as duplicates when the selected columns contain the same trimmed, case-insensitive values.
Which duplicate is kept?
The first matching row is preserved and later matching rows are removed.
Can I use this for non-bank data?
Yes. It works with ordinary CSV files as well as transaction exports.