jsonlint is a lightweight command-line tool for validating JSON.

Building jsonlint

$ git clone https://github.com/p-ranav/jsonlint.git
$ cd jsonlint
$ mkdir build && cd build
$ cmake .. && make && make check

Usage

$ ./jsonlint --help
Usage: jsonlint [options] file 

Positional arguments:
file      	json file to validate

Optional arguments:
-h --help 	show this help message and exit

Example Scenarios

Unterminated String

Trailing comma in array

Duplicate key in object

Typo in keyword