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QR Code Generator (Text / WiFi / vCard)

Generate QR codes for URLs, WiFi credentials, and vCard contacts. Custom colors, download PNG or copy straight to clipboard.

Text or URL

QR color

Background

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Enter content on the left to generate a QR code

3 most useful QR types

📝 Text/URL: landing page, Google Maps location, social link
📶 WiFi: guests scan and connect — no need to type the password
👤 vCard: print on a business card / email signature — scan saves to Contacts

Print at least 2cm × 2cm. Longer content → denser QR → needs to be printed bigger.
Contrast matters: red-on-cream is OK; yellow-on-white may fail older scanners.
Always test scan before printing/posting.

Generation is 100% client-side — WiFi passwords and contact info never leave your browser.

Deposit + loan repayment, decreasing & flat rate, full amortization.

Count working days between 2 dates — exclude weekends + VN/Indonesia 2026 holidays (Lunar NY, Independence Day, Idul Fitri…).

Generate random numbers with crypto-secure or seeded PRNG. 6 presets (dice, lotto, PIN…). Unique + sort options.

Compress JPG/PNG/WebP, resize, change format — runs in-browser via Canvas API. Image is NOT uploaded anywhere.