JSON to YAML Converter
Convert JSON into readable YAML for configs and manifests.
JSON
YAML
About the JSON to YAML converter
YAML is what most infrastructure tooling reads, and JSON is what most APIs emit. This converter bridges them, producing indented YAML with the quoting rules applied correctly.
Because YAML is a superset of JSON, the conversion is lossless in this direction: every value survives, just written more compactly.
Quoting rules that matter
YAML is famous for surprising you. The strings `yes`, `no`, `on`, `off`, `true` and `null` are all interpreted as booleans or nulls unless they are quoted, and a version number like `1.10` silently becomes the number 1.1.
This converter quotes any string that would otherwise be misread, so a JSON string stays a string when the YAML is parsed back. That is the single most common source of broken configuration files.
Structure
Objects become block mappings and arrays become block sequences. Empty objects and arrays are written as `{}` and `[]` because a bare key with nothing under it would parse as null.
Nesting depth is unlimited; each level indents by the amount you pick above.
Frequently asked questions
Why are some of my values wrapped in quotes?
Because they would change meaning without them. A string of "true", "null", or "3.10" has to be quoted to survive a round trip through a YAML parser.
Can I convert back?
Yes — the YAML to JSON converter handles the return trip.
Does it support multiple documents?
The output is a single YAML document. If you need several separated by ---, convert each one and join them.