Is my CSV data secure when using CSVClean?

Yes, absolutely. All CSV processing happens entirely in your browser using JavaScript. Your files never leave your device, and we have zero access to your data. Nothing is uploaded to our servers.

Do you store my CSV files?

No. We never store, log, or have any access to your CSV files. All processing is done locally in your browser, and data is automatically cleared from memory when you close the page.

How does CSVClean pricing work?

Free users can process CSV files up to 5,000 rows with basic features. Pro users ($10/month) can process up to 100,000 rows per file and access advanced features like duplicate removal, date standardization, and number formatting.

What file formats does CSVClean support?

We currently support CSV (Comma Separated Values) files. Your cleaned file will be exported as a CSV that you can open in Excel, Google Sheets, or any spreadsheet application.

Do I need to create an account to use CSVClean?

No account needed for basic use! You can clean CSV files up to 5,000 rows without signing in. An account is only required if you want to upgrade to Pro for larger files and advanced features.

How are duplicates detected?

Two rows are considered duplicates if every single cell matches exactly. If even one cell differs, both rows are kept.

Which duplicate is kept?

The first occurrence is always kept. If rows 5 and 12 are identical, row 5 stays and row 12 is removed.

Why is this a Pro feature?

Duplicate detection compares every row against every other row. For large files, this requires significant processing power that we reserve for Pro users.

Can I try it for free?

You can use all free features (remove empty rows, empty columns, trim whitespace) without signing up. Duplicate removal requires a Pro subscription.

Free Tool

Remove Duplicates from CSV

Find and remove rows that are exact copies of each other.

No Data Stored

Secure Processing

30-Day Guarantee

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Processed Locally

Never Stored

Frequently Asked Questions

Everything you need to know about remove duplicates from csv

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