Pretty-Print JSON

ppjson

#!/usr/bin/env python

from __future__ import print_function
import sys
import json

try:
    json.dump(json.load(sys.stdin), sys.stdout, sort_keys=True, indent=4)
except ValueError as err:
    print("Error:", err, file=sys.stderr)
    exit(1)

Pretty-prints JSON via the terminal. Reads input only from stdin.

To format JSON on the clipboard:

$ pbpaste | ppjson

To format JSON in a file:

$ ppjson < filename