Converters

Deduplicate Rows by Selected Columns

Remove CSV rows that repeat the values of the columns you choose.

Converters

Local only

CSV data

Key columns (comma-separated)Keep Ignore letter case

Everything stays in your browser

Your text is processed on your device — nothing is uploaded to a server.

How it works

Paste CSV with a header row. Columns can be given by name or number. Rows count as duplicates when all key columns match (after trimming spaces).

Good to know

How do I use it?

Enter your csv data, adjust the options and press “Remove duplicates”. Check the result, then copy or download it.

How does it work?

Paste CSV with a header row. Columns can be given by name or number. Rows count as duplicates when all key columns match (after trimming spaces).

Is my data uploaded?

No. Everything is processed in your browser and nothing is sent to a server. No account is needed.