Remove Duplicate Rows from CSV — free online
You export a list and there it is again: the same row, twice, sometimes ten times. Cleaning it by hand in a spreadsheet is slow and easy to get wrong. We added a free tool that does it for you — Remove Duplicate Rows from CSV — right in your browser.
What it does
It finds and removes duplicate rows from a CSV. You paste your data in or upload the file, choose which columns count as "the same", and it gives you a clean copy with the repeats gone. The rest of your rows stay exactly as they were.
Nothing leaves your device
The whole thing runs inside your browser. Your file is never uploaded to a server and nothing is saved anywhere. When you close the tab, it's gone — your data stays with you.
How to use it
- Open Remove Duplicate Rows from CSV and paste your CSV or upload the file.
- Pick the columns that decide when two rows are duplicates.
- Download the cleaned CSV.
It's free with no limit. There are more small tools on the Apps page.