Is there a website widget or javascript library that turns any Bitcoin address into a clickable widget? Was wondering is there a javascript widget or library that turns any BTC address on a website into a popup QR code on hover?
You can create a QR code for any bitcoin address using Google's QR code maker:

https://chart.googleapis.com/chart?chs=250x250&amp;cht=qr&amp;chl=bitcoin:[your-bitcoin-address-here]

Just point to that as the img src and you'll get something that looks like this:



Note this address is used by a lot of tests as the private key is literally "1".