How to Remove Duplicates from a CSV File

Duplicate rows in your CSV file can make data analysis frustrating. With TidyCSV, you can remove duplicates, empty rows, and clean up your data in seconds — right in your browser.

Step-by-Step Guide

1. Go to TidyCSV main tool.
2. Upload your .csv file or paste data directly.
3. Check the options “Remove duplicates” and “Trim whitespace”.
4. Click Clean Data.
5. Preview, then download your cleaned CSV instantly.

Why Use TidyCSV?

• Runs 100% in-browser — no uploads, no privacy risks.
• Supports CSV and plain text lists.
• Free and fast for all users.

Try it now on the main TidyCSV tool page and see how simple data cleaning can be.