Choose a CSV file
Drop a .csv file here
or
Supported: .csv · Up to 10 MB · 100,000 rows · 100 columns
Files over 5 MB may take longer to analyze.
Analyzing your CSV…
Dataset summary
- File
- Size
- Data rows
- Columns
Audit findings
No issues were detected by the current audit rules.
Critical
Problems that may prevent reliable cleanup. Not auto-cleaned.
Review
Potential issues that need your judgment. Left unchanged.
Safe fix
Changes the tool can safely preview for you below.
Safe cleaning
Your original file is never modified. Cleaning is applied to a temporary copy in your browser.
Only checked Safe fixes run. Critical and Review findings stay unchanged. Preview before downloading a cleaned CSV.
Defaults selected: trim whitespace and remove blank rows. Uncheck anything you don’t want.
When selected, fixes run in a fixed order: exact duplicates → blank rows → trim → blank columns.
Select at least one fix to preview.
Change summary
What would be removed
Cleaning preview (changed cells)
Export
Browser-only download. Nothing is uploaded.
Cleaned CSV
The exact cleaned data from the current preview.
Preview selected fixes before downloading the cleaned CSV.
Audit report
A standalone HTML summary of findings and any cleaning you previewed.