CSV, Excel, or JSON files supported
Upload a file or drag and drop to start cleaning
1. Upload: Select a CSV, XLSX, or JSON file. For huge files (1GB+), we use streaming for performance.
2. Clean & Repair: Use the tools on the left to remove duplicates, fix formatting, or validate data types.
3. Preview: The spreadsheet view shows the first 100 rows. Operations apply to the entire dataset.
4. Export: Save your cleaned data back to CSV, JSON, or Excel format.