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
- 1Upload your CSV file (up to 10MB)
- 2Select cleaning options (remove duplicates, trim whitespace, etc.)
- 3Choose which columns to keep
- 4Click 'Clean CSV' to process your data
- 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 databaseExcel Export Fix
Clean Excel exports that contain extra empty rows and columns at the endDeduplication
Find and remove duplicate entries from customer lists or inventory data