Clean, format, and process your CSV data with advanced cleaning options
Click to select CSV file or drag and drop
Supports .csv files up to 10MB
Our CSV data cleaner helps you clean and standardize your CSV files efficiently. Remove duplicates, handle missing values, trim whitespace, and apply consistent formatting to prepare your data for analysis. All processing is done locally in your browser for complete privacy and security.
Remove duplicates, handle missing values, trim whitespace, and standardize text formatting in one go.
See your cleaned data in a formatted table with cleaning statistics and before/after comparison.
All data processing happens locally in your browser - your data never leaves your device.
Download cleaned data as CSV or copy to clipboard for use in other applications.
The tool can remove duplicate rows, trim whitespace, handle missing values, standardize text case, remove empty rows, and clean up formatting inconsistencies in your CSV data.
Duplicate rows are identified by comparing all column values. If all values in a row match exactly with another row, it's considered a duplicate. You can choose to keep the first occurrence or remove all duplicates.
The tool can handle CSV files up to 10MB in size. For larger files, consider splitting them or using specialized data processing software for better performance.
All data processing is performed locally in your browser using JavaScript. Your CSV data is never uploaded to our servers or stored anywhere, ensuring complete privacy and security.
Currently, there's no undo function. However, you can always reload your original data and apply different cleaning options. We recommend keeping a backup of your original data.