Generate QR codes instantly. Download as PNG.
QR (Quick Response) codes are two-dimensional barcodes that can store URLs, text, WiFi credentials, contact information, and other data. Any smartphone camera can scan them instantly, making them ideal for bridging physical and digital content.
WiFi QR codes encode your network name (SSID), password, and security type (WPA/WPA2/WEP) in a standard format. When scanned, the phone automatically connects to the network without manually entering the password. This tool generates the correct WIFI:T:WPA;S:name;P:password;; format.
Use high error correction (Level H) for printed QR codes that might get damaged. Keep encoded content short for faster scanning. Test QR codes on multiple devices before printing. For URLs, use HTTPS to avoid security warnings. The minimum recommended print size is 2cm × 2cm.
QR codes can store URLs, plain text, WiFi network credentials (SSID + password), email addresses with subject lines, phone numbers, SMS messages, geographic coordinates, calendar events (vCal format), and contact cards (vCard format). This tool supports URL, text, WiFi, and email modes.
QR codes use Reed-Solomon error correction at four levels: L (7%), M (15%), Q (25%), and H (30%). Higher levels allow the QR code to be read even when partially damaged or obscured. This tool uses Level H (30%) which is ideal for printed materials that may get scratched, folded, or partially covered.
The minimum recommended print size is 2cm × 2cm (about 0.8 inches) for scanning from 15-20cm distance. For posters and signs scanned from further away, increase the size proportionally. A general rule: the scanning distance should be no more than 10 times the QR code width.
WiFi QR codes use a standard format: WIFI:T:WPA;S:NetworkName;P:Password;;. When scanned by a smartphone, the device automatically connects to the network without the user typing the password. This is ideal for guest networks in offices, cafes, and homes. This tool generates the correct format automatically.