JSON Lint

Command line interface

Install jsonlint with npm to use the command line interface:

npm install @arcadia/jsonlint

Validate a file like so:

jsonlint myfile.json

or pipe input into stdin:

cat myfile.json | jsonlint

jsonlint will either report a syntax error with details or pretty print the source if it is valid.

Options

$ jsonlint -h

Usage: jsonlint [file] [options]

file     file to parse; otherwise uses stdin

Options:
   -v, --version            print version and exit
   -s, --sort-keys          sort object keys
   -i, --in-place           overwrite the file
   -t CHAR, --indent CHAR   character(s) to use for indentation  [  ]
   -c, --compact            compact error display
   -V, --validate           a JSON schema to use for validation
   -e, --environment        which specification of JSON Schema the validation file uses  [json-schema-draft-03]
   -q, --quiet              do not print the parsed json to STDOUT  [false]
   -p, --pretty-print       force pretty printing even if invalid

Module interface

I'm not sure why you wouldn't use the built in JSON.parse but you can use jsonlint from a CommonJS module:

var jsonlint = require("jsonlint");

jsonlint.parse('{"creative?": false}');

It returns the parsed object or throws an Error.