How is a card saved without a database?
Every field, display choice, QR setting, and style option is encoded into one versioned card string. Paste it back into the editor to recreate the same card.
FAQ
Business Card Studio FAQ
What do the QR codes contain?
The contact QR uses a vCard payload. Website, email, social, and edit-string codes use their direct URL, mailto link, profile link, or card string.
Can this issue Apple Wallet or Google Wallet passes?
This scaffold exports contact-friendly QR images and VCF contact data in the browser. Signed wallet pass issuance would need certificates and a backend service.
Is the string deterministic?
Yes. The app normalizes the card state, writes canonical JSON, then base64url-encodes it with a bc1 prefix.