ONE SMALL TASK, DONE.
CSV Duplicate Row Remover
Remove duplicate rows from a CSV file while retaining the first occurrence.
Processed on your devicePaste text, open a file or try the sample to begin.
Your result
How to use
- Paste or open the CSV.
- Say whether the first row is a header, and optionally list the columns to compare.
- Download the file without duplicate rows.
Good to know
Column numbers are 1-based. Matching is exact and case-sensitive.
The first header row is retained. Quoted commas and multiline fields are parsed as complete cells.
Text files up to 5 MB are supported. Downloads are encoded as UTF-8.
Your input is processed by this tool on your device. It is not uploaded to our server. Advertising uses external services. Social and coffee links open external websites.
Questions
How do I match on an email column only?
Enter that column’s number, such as 3. Rows with the same value there count as duplicates even if other columns differ.
Is matching case-sensitive?
Yes. Values must match exactly, including spaces and capital letters.
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