CSV Cleaner

CSV Cleaner.

Clean CSV files online — trim whitespace, remove empties, deduplicate rows, and normalize formatting in your browser.

Your files never leave your device

Drop your CSV file here, or click to browse

CSV files · Processed locally · Max recommended 50 MB

Clean CSV Files Online

Spreadsheet exports often contain trailing whitespace, blank rows, duplicate entries, and inconsistent line endings. Our CSV Cleaner fixes these issues instantly in your browser. Read our guide on how to clean CSV files.

Frequently Asked Questions

What cleaning options are available?

Trim whitespace, remove empty rows, remove empty columns, deduplicate rows, and normalize line endings.

Can I download the cleaned file?

Yes. After cleaning, download the result as a new CSV file.