Clean up a CSV file
Remove blank rows, empty columns, extra spaces, and repeated records, then download a tidy CSV.
Your CSV is read and processed in this browser. BizToolsBox does not upload or save the file. Use the preview to check the output before downloading.
Clean CSV files in a few clicks
CSV exports often contain blank lines, spaces around values, unused columns, or repeated records. This free CSV cleaner lets you choose which cleanup steps to apply, inspect a preview, and download the resulting file.
How to use the CSV cleaner
- Choose a UTF-8 CSV file from your device.
- Select whether to trim spaces, remove blank rows or empty columns, and remove duplicate data rows.
- Review the row count and preview, then download the cleaned CSV.
Frequently asked questions
Is my CSV uploaded to a server?
No. The file is processed in your browser and is not uploaded to or saved by BizToolsBox.
Does the cleaner keep the header row?
Yes. The first row is treated as the column header. Duplicate removal applies to data rows below it.
Can I undo cleanup after downloading?
The original file on your device is unchanged. You can adjust the options and create another copy at any time.
Need to combine exports? Try the free CSV merger. To check product identifiers, use the duplicate SKU finder.