JSON to YAML

Convert JSON to YAML instantly in your browser. Configurable indentation and quoting options.

About JSON to YAML

Paste JSON and instantly get clean YAML output. Configure indent size, optionally quote all strings, and download the result. Handles nested objects, arrays, multiline strings, and special values. All processing runs in your browser.

Features

  • Convert JSON to YAML with correct nesting and types
  • Configurable indentation (2 or 4 spaces)
  • Optional quoting for all string values
  • Handles nested objects, arrays, and special values
  • Copy YAML to clipboard or download as .yaml file
  • Load sample JSON for quick testing
  • 100% client-side — nothing is uploaded

How to use

  1. 1Paste or type JSON into the input panel.
  2. 2Adjust indent and quoting options if needed.
  3. 3Click Convert to generate YAML.
  4. 4Copy the result or download as a .yaml file.

Frequently Asked Questions

Does it support nested objects and arrays?
Yes. Deeply nested structures are converted to properly indented YAML with correct block and sequence syntax.
How are special values handled?
null becomes null, booleans become true/false, and NaN/Infinity use YAML's .nan/.inf notation.
Will strings that look like numbers be quoted?
Yes. The converter automatically quotes strings that could be misinterpreted as numbers, booleans, or null in YAML.
Is my data sent to a server?
No. Conversion runs entirely in your browser. Your JSON never leaves your device.

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