QR codes & barcodes

vCard to QR code

Build a contact QR code with configurable vCard 3.0 or 4.0 details, multiple phone numbers, emails and postal addresses.

Tools will load when you run.

Choose an input fileText, JSON or vCard, depending on the tool · Up to 16 KiB

Identity

vCard versionDisplay namePrefixFirst nameMiddle nameLast nameSuffixNickname

Work

OrganizationDepartmentJob titleRole

Phone numbers

Email addresses

Websites

Postal addresses

Social profiles

More contact details

BirthdayAnniversaryGenderLanguage (e.g. it-IT)Time zone / UTC offsetUnique contact IDPhoto URLOnly the URL is embedded; OneKit does not fetch the image.LatitudeLongitudeCategories (comma separated)

Notes

Only filled fields are included. A contact can contain multiple phone numbers, emails, addresses, websites and social profiles. Dense contact cards may exceed QR capacity; remove long notes or photo URLs if needed. Phones may ignore fields they do not support.

Edit JSON configuration

Changes here update the form. The same JSON file works in the CLI.

JSON configuration

Output formatError correctionPixels per moduleQuiet zone (modules)Module colorBackground colorAlso download encoded content

Keep dark modules on a light background. A quiet zone of at least four modules and high contrast help phones read the code. SVG scales cleanly for print.

Your result.

How to use vCard to QR code

Choose your JSON, VCF or paste text into the editor.
Fill in the contact form, add repeated fields and choose the output settings, or upload a JSON or VCF file.
Generate the QR code and optionally download the encoded vCard. Long contacts may exceed QR capacity.

Formats and requirements

Input formats: JSON, VCF
Output: PNG
Availability: Free in your browser and through the CLI
Files per operation: 1
Browser file limit: 0.02 MiB per file, 32 MiB total

What to expect

Creates a standard QR code locally. Capacity depends on the content and error correction. Keep the quiet zone and test the code before printing.

Do my files leave my device?

No. Thanks to advanced file-processing technology, your files are processed directly on your device, inside your browser. OneKit does not receive your input files or results. Required public processing libraries may download when you first use the tool.

File privacy and local processing →