Generate QR Codes using the Google Chart API
When I’m testing or deploying websites built for mobiles and desktops, it’s often a bit of a challenge to get a URL over to a mobile. This isn’t really a problem the first couple of times; you can copy and paste, use Chrome to Phone or Google Chrome, email it over, etc., however I always like to find ways to speed up repetitive tasks.
To address this, at the bottom of our apps, I generate a link to the page and append it to the following URL. This link will generate a 400 w x 400 h pixel QR code to the chl argument.
https://chart.googleapis.com/chart?cht=qr&chs=400x400&chl=[url here]Example Generated QR Code
Example script
<img src="" alt="Example QR Code" id="qrCode" />
<script type="text/javascript">
var ele = document.getElementById("qrCode");
ele.src = "https://chart.googleapis.com/chart?cht=qr&chs=400x400&chl=" + document.location.href;
</script>