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Founder, NativeCode

Karthik KB

KB builds GoBiz SaaS and has helped thousands of customers launch their own white-label digital business card platforms.

KK

Posts by Karthik KB

  • What Is a vCard? VCF Files Explained (Format, Example & How to Create One)
    NFC & QR Codes

    What Is a vCard? VCF Files Explained (Format, Example & How to Create One)

    A vCard is a .vcf contact file every phone can save. Learn what a vCard means, see the VCF file format with an example, and create one for free.

    KKKarthik KB·Nov 14, 2026·8 min read
  • Self-hosted white-label digital business card SaaS as a Linktree, Blinq and HiHello alternative, shown on two phones with digital business cards
    Guides

    How to Start a Digital Business Card Business in 2026

    Start your own digital business card business with a self-hosted PHP SaaS: a white-label Linktree, HiHello and Blinq alternative where you also sell NFC cards.

    KKKarthik KB·Nov 12, 2026·4 min read

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