CSV Cleaner

Clean, format, and organize your CSV files

🔒 All processing happens in your browser. Your data stays private.

Upload CSV File

Drop files here or click to browse

Accepts: .csv

Max size: 10MB

How to Use

  1. 1Upload your CSV file (up to 10MB)
  2. 2Select cleaning options (remove duplicates, trim whitespace, etc.)
  3. 3Choose which columns to keep
  4. 4Click 'Clean CSV' to process your data
  5. 5Download the cleaned file as CSV or JSON

Tips

  • Removing duplicates compares entire rows for exact matches
  • Empty columns are only removed if every cell in that column is empty
  • Special character removal keeps alphanumeric characters and spaces
  • JSON export is useful for importing into databases or APIs

Common Use Cases

Data Import Cleanup

Remove empty rows and trim whitespace before importing into a database

Excel Export Fix

Clean Excel exports that contain extra empty rows and columns at the end

Deduplication

Find and remove duplicate entries from customer lists or inventory data