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.
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.