JSON to YAML Converter

Convert JSON to readable YAML with 2 or 4-space indentation, optional key sorting, literal blocks for multi-line strings and multi-document output. Free.

JSON input

Open file

Indentation

Sort keysTop-level array → one YAML document per item

YAML output

Runs entirely in your browser. Your data is never uploaded.

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What is JSON to YAML?

Convert JSON into human-friendly YAML. Strings that YAML would misread (like yes, 123 or null) are quoted automatically, multi-line strings use literal | blocks and a top-level array can be written as one YAML document per item.

How to use JSON to YAML

Paste JSON into the JSON input box, or use Load sample or Open file.
Choose Indentation (2 or 4 spaces), Sort keys and Top-level array → one YAML document per item.
The YAML output updates as you type; use Copy or Download.

Example

Input

{"name":"Ada","langs":["en","fr"],"active":true}

Output

name: Ada
langs:
  - en
  - fr
active: true

When to use JSON to YAML

Use it to write configuration for Kubernetes, Ansible, GitHub Actions or Docker Compose from JSON data. Key order is preserved unless you sort it; YAML comments cannot be generated because JSON has none.

How JSON to YAML works

The JSON is parsed and dumped with js-yaml. Lines are never folded, references are inlined, and the dumper quotes any string that would otherwise be read back as a different type. With multi-document output, each element of a top-level array is written after its own --- separator.