Free QR Code Generator

Yes. KoloQR is free to use and does not require a subscription or payment to create static QR codes.

Static QR codes never expire. Once created, they will continue to work as long as the linked content remains available.

Yes. You can use QR codes for personal, educational, and commercial projects, including marketing materials, packaging, menus, business cards, and events.

Yes. You can upload your logo and customize the appearance of your QR code while maintaining scan reliability.

Yes. No account or registration is required to generate static QR codes.

SVG is recommended for professional printing because it scales without losing quality. PNG is suitable for most digital and standard print use cases.

Static QR codes store information directly in the code and cannot be changed after creation. Dynamic QR codes use a redirect URL, allowing you to update the destination and track scans without reprinting the code.

Scan tracking is only available with dynamic QR codes. Static QR codes do not provide analytics or scan statistics.

Static QR codes cannot be edited after printing. Dynamic QR codes allow you to change the destination without creating a new code.

Common reasons include:

• Insufficient contrast between foreground and background
• A logo that covers too much of the code
• Missing quiet zone (white space around the QR code)
• Low image quality or blurry printing
• Excessive design customization
• Incorrect or invalid content

For most printed materials, a minimum size of 2 × 2 cm (0.8 × 0.8 in) is recommended. Larger sizes may be needed for posters, signs, or long scanning distances.

KoloQR generates QR codes locally in your browser whenever possible. Your data is not stored on our servers when creating static QR codes. Always avoid placing sensitive information directly inside a QR code that will be publicly shared.