JSON to YAML Converter
Turn JSON data into readable, comment-friendly YAML config
Converts structured JSON into clean YAML — a format that's easier to read and supports comments. Especially useful when you need to reshape an API response or a database dump into a config template for Kubernetes (k8s), Docker Compose, or a similar server environment.
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Enter the JSON you want to convert into the input box.
- Choose the indentation width for the YAML output.
- Copy the neatly aligned YAML, parsed and rendered as you type.
FAQ
- Do arrays and nested objects convert correctly?
- Yes. Following the js-yaml library's strict serialization rules, arrays become dash (-) lists and nested objects are rebuilt with proper hierarchical indentation.
- How does the resulting YAML represent the original JSON's numbers, booleans, and nulls?
- Numbers and booleans (true/false) are written out unquoted, so a YAML parser reading them back recognizes their original type correctly. Null values follow convention and are written as the null keyword (or a tilde ~) rather than as a quoted string, which keeps the output compatible with other YAML tooling.
- How does the resulting YAML represent the original JSON's numbers, booleans, and nulls?
- Numbers and booleans (true/false) are written out unquoted, so a YAML parser reading them back recognizes their original type correctly. Null values follow convention and are written as the null keyword (or a tilde ~) rather than as a quoted string, which keeps the output compatible with other YAML tooling.