QR codes can encode URLs, plain text, email addresses, phone numbers, SMS messages, Wi-Fi credentials, vCards (contact info), calendar events, and geographic locations. The most common use is encoding URLs for easy scanning with a smartphone camera.
No. The tool generates unlimited QR codes for free. You can use them for commercial purposes, print them on products, or share them anywhere. The QR code image is generated entirely in your browser, and you download the PNG directly.
No. QR code generation happens client-side using the qrcodejs library. The text or URL you encode never leaves your browser. This is important if you are generating QR codes that contain sensitive data like Wi-Fi passwords or personal contact information.