CSVCleaner
100% free · No upload required · Works offline

Clean your CSV files
in seconds

Remove duplicates, trim whitespace, validate emails, and fix your data. All processing happens in your browser — nothing is uploaded.

100% Private Instant processing No signup needed

Drop your CSV file here

or click to browse

Supports .csv, .tsv up to 50MB

How it works

1. Upload

Drop your CSV file or click to browse. Files up to 50MB supported.

2. Clean & Validate

Choose operations: trim, deduplicate, validate emails automatically.

3. Download

Export your cleaned CSV instantly. Your data never leaves your browser.

Simple Pricing

Start for free. Upgrade when you outgrow it.

All cards accepted:VisaMastercardAmerican ExpressDiscoverDiners ClubUnionPay

Freeforever

For occasional CSV cleanup

  • 10,000 rows per file
  • All basic cleaning operations
  • Email validation
  • CSV export
  • Max 50MB file size
Most Popular

$15/month

For professionals who work with data daily

  • Unlimited rows
  • All cleaning + validation operations
  • Email + Phone + Date + Number validation
  • CSV export
  • 500MB file size limit
  • Priority email support
  • Early access to new features

Prices shown in USD. Actual charge in your local currency. All major credit and debit cards accepted. VAT/GST handled automatically. Powered by Lemon Squeezy.