QR Code Generator

No data is ever sent to any server. All QR codes are generated entirely in your browser using client-side JavaScript, which means your URLs, WiFi credentials, and contact details never leave your device at any point during the process. This is critical because QR codes often encode sensitive information such as network passwords or personal contact data that should not be exposed to third parties under any circumstances. You can verify this yourself by opening your browser DevTools Network tab while generating a QR code — you will see zero outbound requests containing your content at any time. This client-side approach ensures that your sensitive data stays completely safe and private, with no risk of interception, logging, or data breaches on external servers, giving you full confidence in the privacy of every code you create.

You can generate QR codes for four different content types: URLs to link to any website or webpage, plain text for short messages or instructions, WiFi network credentials so guests can connect instantly without typing passwords, and vCard contact information for digital business cards. Supporting multiple types in a single tool matters because it eliminates the need to switch between different generators for different use cases, saving valuable time and ensuring a consistent, reliable experience across all your QR code needs. For example, a restaurant owner can create a URL QR code for their menu page and a WiFi QR code for guest access in the same session without re-entering settings. Whether you need a simple link or a full contact card, this tool handles all common QR code needs in one convenient place.

Yes, you can fully customize your QR code appearance. Choose from 6 body dot styles (square, rounded, dots, classy, classy-rounded, extra-rounded) and 7 eye frame and eye ball shapes. You can also set separate colors for the body, eye frame, and eye ball, and upload a logo to the center of the code. Customization matters because branded QR codes receive significantly higher scan rates than generic black-and-white ones, with studies showing up to a forty percent increase in engagement when codes match a company visual identity. For example, a coffee shop can use rounded dots in brand colors with their logo overlay, making the QR code both functional and recognizable. When you add a logo, the error correction level automatically switches to High to ensure reliable scanning despite the logo covering part of the code.

Yes, QR codes have a maximum data capacity that depends on the error correction level and the character type used. Version 40 QR codes can hold up to 7,089 numeric characters, 4,296 alphanumeric characters, or 2,953 bytes of binary data at the lowest error correction setting. However, in practice, shorter data produces smaller, faster-scanning codes that are more reliable in real-world conditions. Error correction comes in four levels: Low (seven percent recovery), Medium (fifteen percent), Quartile (twenty-five percent), and High (thirty percent). Higher error correction reduces data capacity but makes the code more resistant to damage or obstruction, which is essential for printed materials. For URLs and contact information, standard capacity is more than sufficient even at High correction. Choosing the right balance between data size and error correction ensures your QR code remains scannable even when printed small or placed in challenging environments.