jwalk provides an easy way to inspect the object tree created by a JSON file via the command line. The interface provided is a lot like a typical shell, with familiar commands like cd and ls.

More documentation (and fewer bugs) coming soon. In the meantime, install it via npm:

npm install -g coffee-script
npm install -g jwalk

NOTE: Right now you need to install coffee-script globally for jwalk to work. Sorry about that. I'll fix it soon.

And then run it like this:

jwalk somefile.json

It can also handle gzipped files. If the extension is .gz, it will decompress the JSON data automatically.

jwalk somefile.json.gz

Bug reports and pull requests welcome!