CSV cleaner
CRM exports, survey dumps, and ecommerce feeds often arrive as messy CSV files. Upload yours, see every issue category, and download a file that is ready for import.
Supports .csv
Clean my CSV fileHow CSV cleaning works
- Drop your CSV — encoding and structure are parsed automatically.
- Issues are grouped by type with counts and affected columns.
- Preview sample rows before anything changes.
- Download a cleaned CSV with fixes applied.
Common CSV problems
- Duplicate rows after concatenating multiple exports.
- Blank rows between header blocks from manual edits.
- Inconsistent quoting that breaks downstream parsers.
- Mixed encodings showing garbled characters in names.
Before and after
Before
Survey export · empty rows · duplicate respondents
After
Clean CSV · unique rows · consistent email formatting
FAQ
Standard comma-separated CSV. Upload the file as exported from your source system.
Free plans support up to 10,000 rows. Pro supports up to 500,000 rows.
Headers are preserved unless you choose rules that affect column structure.
Related tools
Try it free
Analysis is free. Upload and see issues in seconds.
Clean my CSV file