[tonyle]

Chrome console allows you to inspect an object and expand on the properties visually.

For the most common cases, I just copy and paste the string into the chrome console if I need to inspect some random JSON file really quick.

If it is too big to copy and paste, pipe it into a html file as a global variable and view the object in the console.

You can also just open a node repl and load the JSON into memory. node lets you auto complete property names by pressing tab, this is great for inspecting some unknown object.