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Learn More About QR Codes
Discover the history and technical specifications of QR codes:
About QR Code Generator
QR codes are the fastest way to bridge the physical and digital worlds. Our free online QR Code Generator allows you to instantly create custom QR codes for URLs, text, emails, phone numbers, and Wi-Fi networks.
How It Works
The tool uses a local encoding library to translate your input data into a two-dimensional barcode matrix. It then renders this matrix onto an HTML canvas, allowing you to customize the colors and download the final image as a PNG or SVG.
Common Use Cases
- Creating a QR code for a restaurant menu to place on tables
- Adding a link to your portfolio or website on a printed business card
- Generating a Wi-Fi login QR code for guests to easily connect to your network
- Creating scannable links for event flyers or promotional posters
Frequently Asked Questions
No, the QR codes generated here are 'static'. The data is encoded directly into the image pattern, so as long as the destination URL or text remains valid, the QR code will work forever.
Yes, you can customize the foreground and background colors. Just ensure there is high contrast between the two colors so that smartphone cameras can easily scan it.
You can encode URLs, plain text, WiFi credentials, email addresses, phone numbers, SMS messages, vCards (contact info), and calendar events.
A QR code can hold up to 7,089 numeric characters, 4,296 alphanumeric characters, or 2,953 bytes of binary data. Longer data requires a denser (harder to scan) code.
Yes, change the foreground and background colors, add rounded corners, or embed a logo in the center. Ensure sufficient contrast for reliable scanning.
Static QR codes never expire — they encode data directly. Dynamic QR codes (which redirect through a URL) can be changed or deactivated by the service provider.