The title is pretty self explanatory on this one.
The Google Charts API is definitely the easiest. You just make a URL as follows:
Content is usually a link, for example, this is a link to this site:
You can also make ASCII QR codes (mainly for websites like Reddit): http://asciiqr.com/
easy as adding a link and click generate. Can generate for sms, text or phone numbers.
You can turn the url of the page your are viewing into a QR Code easily with these bookmarklets:
This one creates a pop-up where you can edit the url. It's a two click process:
This one is a one click and done process:
Just create a bookmark in your Chrome or FF browser bar and paste the above code into the URL field of the bookmark.
If you're looking for an Android app that does that, try "QR Droid".
It lets you do this: - In the Browser, when your viewing URL that you want to share, select "Menu" > "More" > "Share page" > "QR Droid" - There, you'll be able to generate QR code with a click, and to optionally shorten it first so resulting QR code has less data an therefore is easier to read by decoders
After generating QR code, it allow you to share image or URL from Google Chart as text
I hope it helps
I'm a big fan of QR Code Generator from the ZXing Project. It's a web app that quickly lets you enter in any text to create a QR code.
It will also allow you to enter structured info (URL's, Contact Info, Wifi-network credentials), and creates QR Codes from that. The benefit there is that you may have apps that are set up to handle structured data.
E.g.: a URL QR code will automatically open up your web browser at that address. Contact QR codes will create a new contact in your address book, and so on.