Last updated
Common QR Code Use Cases
- Business cards — link to portfolio, LinkedIn, or contact page
- Restaurant menus — link to digital menu or ordering system
- Event tickets — unique codes for entry scanning
- Product packaging — link to instructions, warranty, or reviews
- Marketing materials — track campaign effectiveness with URL shorteners
- WiFi access — eliminate password sharing at venues
- Payment — link to payment pages or cryptocurrency wallets
All QR code generation happens entirely in your browser. Your data is never transmitted to any server, making it safe to encode sensitive information like WiFi passwords and contact details.
Examples
Example 1: URL QR Code
The most common use case — encode a URL for instant access via smartphone camera:
Data type: URL
Input: https://techconverter.me/json-formatter
Generated QR code:
Size: 200x200 pixels (recommended minimum for print)
Error correction: Medium (15% damage tolerance)
Format: PNG
Use cases:
- Print on business cards to link to your website
- Add to flyers and posters for marketing campaigns
- Include on product packaging for additional information
- Display on presentation slides for resource links
Example 2: WiFi Network QR Code
Let guests connect to your WiFi by scanning a QR code — no password typing required:
Data type: WiFi
Network name (SSID): GuestNetwork
Password: MySecurePassword123
Security: WPA2
Hidden network: No
Encoded as:
WIFI:T:WPA;S:GuestNetwork;P:MySecurePassword123;H:false;;
Use cases:
- Print and frame at reception desks or coffee shops
- Include in Airbnb welcome guides
- Post in conference rooms for meeting guests
- Add to restaurant menus for customer WiFi access
Example 3: Contact Information (vCard)
Encode contact details so people can save them directly to their phone:
Data type: vCard
Name: Alice Smith
Title: Senior Developer
Company: TechCorp Inc.
Phone: +1-555-0100
Email: alice@techcorp.com
Website: https://techcorp.com
Encoded as:
BEGIN:VCARD
VERSION:3.0
FN:Alice Smith
ORG:TechCorp Inc.
TITLE:Senior Developer
TEL:+1-555-0100
EMAIL:alice@techcorp.com
URL:https://techcorp.com
END:VCARD
Use cases:
- Business cards (scan to save contact instantly)
- Conference name badges
- Email signatures