A simple approach: https://chart.apis.google.com/chart?cht=qr&chs=250x250&chl=BTC-address-goes-here https://chart.apis.google.com/chart?cht=qr&chs=250x250&chl=

A simple approach: https://chart.apis.google.com/chart?cht=qr&chs=250x250&chl=BTC-address-goes-here https://chart.apis.google.com/chart?cht=qr&chs=250x250&chl=B... Change size as needed.