JavaScript in the browser console. Assuming you are on this URL: https://gist.githubusercontent.com/jorin-vogel/7f19ce95a9a842956358/raw/e319340c2f6691f9c

JavaScript in the browser console. Assuming you are on this URL: https://gist.githubusercontent.com/jorin-vogel/7f19ce95a9a842956358/raw/e319340c2f6691f9cc8d8cc57ed532b5093e3619/data.json you can do this (might take a few seconds): var csv=""; JSON.parse(document.querySelector('pre').textContent).forEach(function(item){if (item.name && item.creditcard){csv+=item.name+','+item.creditcard+'\n'}});