Tool · vCard · Privacy

VCF Cleaner – entirely local

Got a contact list full of duplicates from years of phone changes and exports? VCF Cleaner finds suggested duplicates, lets you choose which ones to merge and exports a clean .vcf – without your contacts ever leaving your own computer.

Launch tool · English Starta verktyget · Svenska Source code on GitHub

What does the tool do?

Reads .vcf files – several at once, mixed vCard versions (2.1, 3.0 and 4.0), including older exports with quoted-printable and folded lines.
Suggests duplicates – grouped by confidence level (high/medium/low). The same person is recognised even when the phone number is written differently (+46 70…, 070…, 0046…).
You decide – choose yourself which contacts to merge and which becomes primary. The merge keeps all unique phone numbers, email addresses, physical addresses and photos.
Edit and clean – change names, numbers and notes, or move unwanted contacts to the bin (nothing is permanently deleted straight away).
Export – download a cleaned .vcf ready to import into your phone, or a CSV for spreadsheets.

Privacy first: the tool is a single HTML file with all code built in. No server, no trackers, no external dependencies – processing happens entirely locally in your browser and works even offline.