CSV Cleaner
Fix messy CSV files in your browser. Nothing leaves your device.
Free up to 500 rows. Pro: $4 one-time · 30 days.
Free cleans one file at a time. Pro allows several.
Unlock Pro
Pro, $4 one time. Unlimited rows, all fixes, batch files. Unlocks for 30 days. No account.
Payment by Stripe. Your CSV is never sent to us.
Lost your unlock? Email your Stripe receipt to grindtiny@gmail.com.
Results
Files
Questions
How do I remove duplicate rows from a CSV online?
Drop your file, keep "Remove duplicate rows" checked, click Clean file, then download the result.
How do I clean a CSV file for free?
Free works on up to 500 rows. It trims whitespace, removes empty rows and removes duplicate rows.
Is my CSV uploaded anywhere?
No. Processing happens in your browser. Open the network tab in your browser tools to check.
How do I fix a CSV with the wrong delimiter or garbled characters?
Pro has a delimiter fix and an encoding and BOM fix. Pick the output delimiter you need and clean the file.
How do I convert dates in a CSV to YYYY-MM-DD?
Pro has "Normalize dates". If a date like 03/04/2024 is unclear, you choose day first or month first.
What does Pro cost?
$4, once. It lasts 30 days. No subscription and no account.