This is quite good - https://browserlab.adobe.com https://browserlab.adobe.com. I'm sure I've seen other such apps on HN before, but it is a huge problem, so I

This is quite good - https://browserlab.adobe.com https://browserlab.adobe.com. I'm sure I've seen other such apps on HN before, but it is a huge problem, so I reckon there's room for improvement.