Sorting and viewing API data for newbs

Hi there so ive searched the site and this has been asked several times however the questions have either had poor formatting or the user has essentially asked the wrong question. However its common so hopefully this will help address this and answer my question. My question is this I have pulled a large data set from an API in javascript. I want to filter this data to use elsewhere in my application. After some appropriate thought i realise i can do this programatically

however beforehand it would be nice to see some basic statistics on the returned data so i know what im dealing with eg number of arrays, rank perhaps.... and cleanly printed. at the moment im just using cURL. Are there any particular simple tools or recommendations in this regard please?