About json format

2 minute read

We always want to see the json data pretty, so there are a lot of ways to achieve this.

online web service

json formatter and validator

chrome console

Right click and click the ‘inspect element’ or ALT + COMMAND + i, enter into the chrome console, write your json data and assign it to a variable, you can control it as a dict.


read data from input:

echo '{"test":1,"test2":2}' | python -mjson.tool

retrieve select data (In this case “test”’s value):

echo '{"test":1,"test2":2}' | python -c 'import sys,json;data=json.loads(sys.stdin.read()); print data["test"]')

if the json data is in a file:

python -mjson.tool filename.json

in python code

use system command

def print_json(data):
        import os

        cmd = "echo '%s' | python -mjson.tool" % data

use json lib

print json.dumps(json.loads(content), indent=4, ensure_ascii=False)