Results will appear here.
Runs 100% in your browser. Your files never leave this device.
How it works
- CSV and XLSX import with automatic and manual field mapping.
- vCard 3.0 or 4.0 output, single file or split into chunks for picky importers.
- Duplicate detection and merge on phone or email, with a problem-row report.
- Phone cleanup keeps a leading plus and flags numbers that look too short or long.