fiFirnio
Local processing · No signup

Clean your CSV and Excel files!

Find duplicates, extra spaces, invalid emails, inconsistent phone numbers and dates. Review the changes, then download a clean copy.

Drop a CSV or Excel file

or choose a fileCSV or Excel (.csv, .xlsx)

Free downloads up to 10,000 rows · €4.90 per file from 10,001 to 50,000 rows