CSV Validator & Cleaner
Validate CSV files for errors, mismatched columns, and empty rows. Clean and download a fixed CSV instantly.
100% client-side processing - your files never leave your browser
Validation ReportOK
Headers present
Consistent columns
2 empty rows
Upload Your File
Drag & drop a file here
or click to browse
Supported formats: CSV, XLSX, XLS (max 50MB)
Frequently Asked Questions
Common questions about this tool.
The next step is getting it into the sheet
This tool cleans the file up. SmoothSheet writes it into Google Sheets from our servers, so the rows land as one import instead of a frozen tab — however many there are.
Import a file to Google SheetsGoogle sign-in, no card. Free plan covers 10 uploads a month.