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JSON YAML Converter

Convert JSON to YAML or YAML to JSON instantly. Runs in your browser with no upload.

Next step
Format and validate JSON.JSON Formatter

Configuration files, API examples, and deployment settings often move between JSON and YAML. Converting by hand is easy to get wrong when indentation, quotes, or arrays change shape.

Developer ToolsBrowser-basedOpen full guide

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Help and details

How to use

  1. Choose whether you want to convert JSON to YAML or YAML to JSON.
  2. Paste your input into the left editor.
  3. Run the conversion and review the formatted output on the right.
  4. Copy or download the result when it looks correct.

Privacy and processing

This tool runs entirely in your browser. Your data is never uploaded to our servers.

Frequently Asked Questions

Is my data uploaded to a server?
No. Conversion runs entirely in your browser.
Does it support multi - document YAML?
This tool is intended for single - document YAML. Multi - document YAML may not convert as expected.
Why do I get a parsing error?
The source may contain invalid JSON or YAML. Common issues include trailing commas in JSON or indentation mistakes in YAML.
Will the converter preserve comments?
No. Comments are not preserved when converting because JSON does not support comments directly.
Does it preserve key order?
In most common cases, insertion order is preserved, but exact ordering is not guaranteed in every edge case.