All tools → Data & Business
What it does
Remove duplicate rows and report the removal count. Part of Data & Business — CSV/JSON cleanup, conversion, and validation.
Also found under: dedupe, unique rows.
When to use it
Remove exact-duplicate mailing-list rows and report how many were dropped.
Privacy & safety
Rows are processed in memory on your device. Review anonymized previews before exporting anything.
This tool works on text you paste — nothing leaves the page until you copy or save it yourself.
Related tools
- Column Statistics Calculator — Min, max, mean, median, stdev for numbers; top values for text.
- CSV ⇄ JSON Converter — Convert between CSV and JSON with duplicate-row removal.
- CSV Viewer & Editor — View and edit CSV rows in a table, then download the result.