QR+QR Code Generator

QR Code Generator Complete Guide

QR Code Generator instantly converts any text, URL, WiFi credentials, or contact info into a QR code image. Used for business card links, offline print materials, event registration, and marketing campaigns, the generated QR code can be downloaded as a PNG file immediately.

Types of Data You Can Encode

QR codes can encode much more than just URLs. Here are the most useful formats:

URL / Website Link

The most common use case. Enter a URL in the form https://example.com. Shorter URLs produce fewer QR modules and scan more reliably. Combine with a URL shortener (bit.ly, tinyurl) for best results.

WiFi Auto-Connect

Let visitors connect to WiFi by scanning — no password typing needed. Format:

WIFI:T:WPA;S:NetworkName;P:Password;;

vCard Contact

Auto-save contact info when scanning a business card. Format:

BEGIN:VCARD
VERSION:3.0
FN:John Doe
TEL:+1-555-1234
EMAIL:john@example.com
END:VCARD

Email / SMS Shortcut

Use mailto:user@example.com?subject=Inquiry or sms:+15551234 to open the email or SMS app immediately on scan.

Tips for Better QR Scan Rates

Size and Quiet Zone

Maintain a minimum physical size of 2cm × 2cm when printing. QR codes require at least 4 modules of white space (quiet zone) around the border — without it, scanners fail to detect the boundary.

Color Contrast

Black on white is the safest combination. For colored QR codes, the foreground must be dark enough against a light background. Inverted colors (white pattern on dark background) can fail on some scanners.

Marketing and Business Card Use Cases

• Business cards: LinkedIn profile or personal portfolio URL
• Restaurant menus: Table QR linking to a mobile menu
• Event banners: Pre-registration or survey link
• Product packaging: Manual or support page link
• Office: WiFi auto-connect QR for meeting rooms

Frequently Asked Questions

• Do QR codes expire? — The QR code itself is permanent, but if the linked URL expires, scanning shows an error page.
• What size is best for printing? — Generate at 512px or larger for high-resolution printing.
• Is my data sent to a server? — No. All QR generation happens in the browser; your input is never transmitted.
• Can I add a logo to the center? — This tool generates standard QR codes. For logo embedding, use tools like Adobe Illustrator or Canva.

Tip: Shorten long URLs with bit.ly or tinyurl.com before generating a QR code — fewer modules means faster, more reliable scanning.