JSON to YAML: Config-Ready Output
JSON is great for APIs but verbose for human-edited config files. YAML's minimal punctuation, comment support, and multi-line strings make it the standard for Kubernetes manifests, Docker Compose files, GitHub Actions, and infrastructure-as-code. Convert your JSON to clean, valid YAML in one click.
Frequently Asked Questions
Why is YAML preferred over JSON for config files?
YAML allows comments (# syntax), is more readable with less punctuation, and supports multi-line strings natively. Most CI/CD tools (GitHub Actions, CircleCI) and orchestration tools (Kubernetes, Docker Compose) use YAML.
How are booleans handled?
JSON booleans true/false become YAML literals true/false. Note that YAML also treats yes/no and on/off as booleans — strings matching these values are quoted in the output to prevent ambiguity.
What happens to null?
JSON null becomes the YAML literal null.
When are strings quoted?
Strings are quoted if they contain special YAML characters (:, #, [, ], etc.), match boolean/null keywords, have leading/trailing whitespace, or are empty.
How are arrays converted?
Simple scalar arrays (strings, numbers) are rendered as inline lists [a, b, c]. Arrays of objects use block sequence notation with - per item.
Is the output valid YAML?
Yes — the output targets YAML 1.2 and is compatible with most YAML parsers including js-yaml, PyYAML, and Go's gopkg.in/yaml.v3.