Thanks this is very useful, I need to try toload json file. For editing JSON, I found http://www.jsoneditoronline.org/ for editing JSON file. If anyone has a simple example to load external json file and plot in a web?
There is Flot - http://www.flotcharts.org/. You specify the information as JSON arrays and you can also provide JSON objects to specify how the graph should be styled.
JSON is a format that can store just about anything. Consequently, the download statistics you have in JSON format could be arranged in any of a thousand ways. So there won't be a website you can upload it to that will just know how to draw it for you. Perhaps you can re-download the data in a more common format, like CSV or XLSX?