Free QR code tools

Tools that run in your browser, free and without an account. Nothing you enter or upload is sent to our servers.

• QR code scannerRead a QR code from an image or with your camera. Decoded in your browser.
• QR code testCheck a QR code image before you print it: two decoders, contrast, quiet zone, colors, and size.
• QR code size calculatorThe minimum print size in cm for your content and scan distance.
• QR code contrast checkerCheck whether two colors scan as a QR code: contrast ratio, inverted colors, and a live preview.

Make a QR code

• Open the editor
• Pick a QR code type