gojq (https://github.com/itchyny/gojq https://github.com/itchyny/gojq) and fq (https://github.com/wader/fq https://github.com/wader/fq) can read YAML and output

gojq (https://github.com/itchyny/gojq https://github.com/itchyny/gojq) and fq (https://github.com/wader/fq https://github.com/wader/fq) can read YAML and output JSON. But that won't nescessarily help, because other parsers can intepreret that YAML differently.