Pretty-print JSON files using the command line

If you have either Python 2 or 3 installed, use the json.tool module to pretty-print.

python -m json.tool <json_file> | less

You can also stream input to Python instead of passing a file directly.

cat <json_file> | python -m json.tool | less

This may be useful for viewing large minified JSON files that could slow down GUI applications.