Create QR Codes for Links, Texts, and Contacts

You can encode various data types, including URLs, plain text, contact information (vCard), Wi-Fi credentials, email addresses, phone numbers, SMS messages, and much more.

QR codes can store up to 4296 alphanumeric characters, 7089 numeric characters, or 2953 bytes of binary data. However, the more data you include, the denser and harder to scan the code becomes.

Yes, you can customize colors, add logos, change module shape, and adjust the error correction level. However, ensure sufficient contrast between foreground and background for reliable scanning.

The minimum recommended size is 2x2 cm (0.8x0.8 inches) for close-range scanning. For long-distance scanning, use larger sizes. A rule of thumb: scanning distance = QR code size × 10.

Common issues include insufficient contrast, too much or too little data, poor print quality, damaged code, or inadequate lighting. Ensure good contrast, test before mass printing, and include error correction.

Error correction allows QR codes to be readable even if partially damaged. There are four error correction levels (L, M, Q, H), where H provides the most redundancy (up to 30% damage).

The generator creates static QR codes. This means the data in the code is fixed at the time of creation and cannot be changed later. If you need to update the content, you must generate a new QR code. However, if the QR code contains an encrypted link to your website or landing page, you can update the information on the page itself without changing the QR code. The main thing is to maintain the same URL so the code continues to point to the current content.

The QR code itself is just a data format. Security depends on the encoded content. Be cautious when scanning codes from unknown sources, as they may lead to malicious websites or unwanted content.