I made this simple site because I want to see this curve everyone is talking about. The press just give today's numbers and all graphs show cumulative total not cases per day. It's easier to see a trend and get an idea if exponential growth is happening by looking at how cases per day are growing or slowing.
This website uses the data from the John Hopkins Institute, which has then been processed to show new cases per day, rather than cumulative total. They update it at 11:59PM UTC so it won't necessarily have today's figures in it yet, and sometimes today's figure will show as zero (sadly this does not necessarily mean there are zero cases for this country!)
I hope you find this in some way useful but note that this site is provided without guarantee that I got the calcualations right. If you think I got anything wrong, please let me know so I can fix it! @jonplackett