Free QR Code Generator

QR codes encode information in a two-dimensional barcode that smartphones can scan. They use error-correction algorithms to stay readable even when partially damaged. When scanned, the phone's camera decodes the pattern and performs the action (opening a URL, dialing a number, etc.).

The recommended minimum size is 2×2 cm (about 0.8×0.8 in) for reliable scanning with smartphones. For outdoor or long-distance scanning, use at least 5×5 cm (about 2×2 in). Larger QR codes are easier to scan but take up more space.

Error correction lets QR codes be read even when they are damaged. Low (7%) is for perfect conditions, Medium (15%) for general use, Quartile (25%) for a slight risk of damage, and High (30%) for environments where damage is likely. Higher error correction makes QR codes denser but more resilient.

This tool generates standard black-and-white QR codes for maximum compatibility. For colored or branded QR codes, you will need specialized design software. Always keep high contrast between foreground and background colors for reliable scanning.

To track scans, create a short link with analytics (such as Bitly or TinyURL) and encode that shortened URL in your QR code. The shortener will track every click, giving you scan statistics. You can also use dedicated QR code platforms with built-in analytics. To go further, use our UTM URL builder for campaign tracking to add tracking parameters before you generate your QR code.

QR codes can store up to about 2,950 characters of alphanumeric text or 4,296 characters of numeric data. However, more data creates denser codes that are harder to scan. For best results, keep URLs under 100 characters by using URL shorteners.

Test your QR code on several devices (iPhone, Android) and with different camera apps before mass production. Try scanning from different distances and in different lighting conditions. Check that the action (opening a URL, dialing a number) works as expected on every device.

Yes. The QR code generated here is static: your link or text is encoded directly in the image, with no redirect through a third-party service. Once downloaded, it works for as long as the link it contains stays online, with no subscription and no expiration date, including for commercial use. By contrast, the “dynamic” QR codes offered by some platforms go through their servers and stop working if the subscription ends.