CSV Cleaner
Clean and sanitize CSV data
Files stay on this deviceRuns entirely in your browserFree — no signup
Drop your file here or browse from your device
Accepts CSV, TSV, TXT. Maximum input: 10 MiB. Files above this hard limit are rejected before local processing.
How to Use
- Upload your CSV
- Select cleaning options
- Download cleaned CSV
Features
- Trim whitespace
- Remove empty rows
- Fix quote issues
- Standardize line endings
Use Cases
- Fix messy exports
- Prepare data for import
- Standardize formatting
Frequently Asked Questions
Is CSV Cleaner free to use?
Yes. It is free to use with no signup or watermark.
Is my data private when using CSV Cleaner?
Absolutely. All processing happens in your browser. Your data never leaves your device.
What does the CSV cleaner fix?
It removes extra whitespace, trims cell values, fixes inconsistent quoting, and removes empty rows.