Convert JSON to readable YAML

Paste valid JSON and rewrite it as YAML for config examples, API docs, and structured developer notes.

All data conversion happens locally in your browser. No JSON, CSV, YAML, or XML is sent to our servers.
JSONYAML

Quick examples

Turn strict JSON into YAML you can scan

JSON is precise, but YAML is often easier to read in config snippets, runbooks, API docs, and infrastructure examples. This converter parses valid JSON first, then writes the equivalent YAML structure.

The result is a clean starting point, not a YAML authoring assistant. JSON has no comments, anchors, aliases, or custom YAML tags, so those features are not generated during conversion.

How JSON maps to YAML

  • Objects become YAML mappings.
  • Arrays become YAML sequences.
  • Strings, numbers, booleans, and nulls keep their parsed JSON value.
  • Whitespace in the source JSON does not affect the data structure.
Input note: JavaScript object syntax is not JSON. Quote keys and strings, remove comments, and remove trailing commas before converting.

Good uses for the output

  • Move API response samples into YAML-based documentation.
  • Draft config examples from JSON fixtures.
  • Compare nested objects in a more line-oriented format.
  • Prepare small YAML snippets before adding comments manually.

JSON to YAML FAQ

Why does JavaScript object syntax fail?

The parser expects JSON, not JavaScript. Object keys and strings must be quoted, comments are not allowed, and trailing commas are invalid.

Will the converter add YAML comments or anchors?

No. JSON does not contain comments, anchors, or aliases, so the generated YAML only reflects the parsed JSON data.

Should I use this output directly as production config?

Review it first. YAML syntax can be valid while still needing comments, environment-specific values, or schema checks for the target tool.