A QR Code is a two-dimensional barcode that is readable by smartphones. It allows to encode over 4000 characters in a two dimensional barcode. QR Codes may be used to display text to the user, to open a URL, save a contact to the address book or to compose text messages.
QR code stands for Quick Response Code and is barcode type that was invented by Denso Wave in 1994.
If you use a modern web browser (recent versions of Firefox or Chrome) and have a webcam, this site allows you to scan QR Codes with your web browser. You can use this to send a link from a phone to your desktop browser.
No! There is no restriction of any kind. You can use these QR Code images for whatever you like, also commercially. Please note that the word "QR Code" is a registered trademark of DENSO WAVE INCORPORATED. If you want to use it, you have to add a trademark comment.
The content of a QR Code cannot be changed once generated. What is sometimes referred to as a Dynamic QR Code, is a QR Code pointing to a static URL that hosts the actual content (e.g. the real URL). The hosted content can be changed after the QR Code has been printed.
We do not save or reuse your data in any form. We cache your qr code image files for 24h on our server to optimize the performance. All generated QR Codes are 100% free and can be used for whatever you want. This includes all commercial purposes.