CSV to vCard converter

This tool never connects to iCloud. It builds the .vcf file; you import it yourself at icloud.com/contacts. Phone numbers are written exactly as typed, with no country code inferred. Birthdays become BDAY dates only when they are real calendar dates, and a date like 03/04/2001 reads the way your birthday order setting says, never a guess. Website values must start with http or https, so script links are dropped. Photos, contact groups, and mailing lists are out of scope. Everything runs in this tab and nothing is uploaded.