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JSON to YAML Converter

Convert JSON to YAML and YAML to JSON instantly. Bidirectional conversion with syntax validation — all client-side.

JSON to YAML conversionYAML to JSON conversionBidirectional swapSyntax validationFormatting optionsClient-side only
Indent:

YAML Input

0 chars

JSON Output

Output will appear here...

How to Convert JSON to YAML

  1. 1Select the conversion direction: JSON → YAML or YAML → JSON
  2. 2Paste your data into the left input area
  3. 3The conversion happens automatically as you type
  4. 4View the converted output on the right panel
  5. 5Use the Swap button to reverse input and output
  6. 6Click the copy button to copy the result

Frequently Asked Questions

What is the difference between JSON and YAML?

JSON uses braces and strict syntax; YAML uses indentation and supports comments. YAML is popular for config files (Docker, K8s, GitHub Actions), while JSON dominates APIs and data interchange.

Can I convert YAML to JSON too?

Yes. The tool is fully bidirectional. Toggle the direction or use the Swap button to convert in either direction.

Does it handle multiline strings?

Yes. YAML literal blocks (|) and folded blocks (>) are both supported and correctly converted to and from JSON string values.

Are comments preserved?

YAML comments (# lines) are recognized during parsing but not preserved in JSON output, since JSON does not support comments.

Is my data sent to a server?

No. All conversion runs entirely in your browser using a built-in YAML parser. Your data never leaves your device.

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