QR codes, what for?
QR codes (for «Quick Response») are images encoded like bar codes that can contain all kinds of information, such as a sentence. The image opposite is a QR code containing the text: « Bonjour! Je suis un code QR. »
Ultimately, you have to download an application on your mobile to be able to read them. Most cell phones with a camera can read QR codes. The code in question may contain useful information such as the address of a website, but also be used to trigger an action such as sending an email or connecting to a Wi-Fi network.
Here are other examples of the types of information that QR codes can contain:
- Plain text
- Link to a website
- Business card (vcard)
- Sending email or SMS
- WiFi network
Generate a QR code yourself online
There are several online tools for generating your own custom codes, some of which are very interesting and quite sophisticated. The two generators below have the advantage, not only of providing a very user-friendly creation interface, but above all of offering the possibility of modifying the code generated in order to make it a real object of graphic art! We can generate all kinds of QR codes, change colors, integrate images …
Other tools to create QR codes
There are QR code generators for WordPress, which can be integrated into the page. The latter can for example generate the QR code indicating the URL of the current page.
There are QR code generators for Joomla, which can be integrated into the page. The latter can for example generate the QR code indicating the URL of the current page.
There is also Google which provides an API for the design of such images, in an automated way. For example, the following URL generates a QR code indicating a link to this site:
With a little programming, one can come to create very interesting applications to create large quantities of QR codes in an automated way. Google’s API has the advantage of being free to use, but Unicode’s API, which is chargeable, seems more complete in terms of the possibilities to adapt the codes generated.