JSON is YAML!

Since YAML 1.2  (2009) JSON is a complete subset of YAML. This means that any valid JSON file is also a valid YAML file and can be loaded by a YAML loader to produce the equivalent data structure as if it were loaded by a JSON parser.

Since YS is a YAML loader it can used on JSON files as well.

This is very useful for converting between the two formats and for using YS to query and transform JSON files.

Note

Just because the YAML spec says it's a subset doesn't mean that all YAML tools can be trusted to handle JSON files 100% correctly. Caveat emptor.