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HomeDeveloper ToolsYAML ↔ JSON Converter

YAML to JSON Converter — Free Online Tool

Convert YAML to JSON and JSON to YAML instantly with error highlighting and download.

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How to Use

  1. 1Select "YAML to JSON" or "JSON to YAML" tab.
  2. 2Paste your YAML or JSON in the input area.
  3. 3Click Convert to see the formatted output.
  4. 4Copy the result or download as .json or .yaml file.
  5. 5Use "Load Example" to see a sample conversion.

About YAML ↔ JSON Converter

The YAML ↔ JSON Converter handles both directions: YAML to JSON and JSON to YAML. It uses the js-yaml library for accurate, standards-compliant parsing and output.

Parse errors are displayed with clear messages to help you debug malformed input. The tool supports complex nested structures, arrays, and all standard YAML scalar types.

Frequently Asked Questions

What YAML features are supported?

Standard YAML 1.2 including nested objects, arrays, multi-line strings, anchors, and all scalar types (strings, numbers, booleans, null).

Can I download the output?

Yes. Both JSON and YAML outputs can be downloaded as files using the Download button.

Is JSON a valid YAML?

Yes, valid JSON is also valid YAML (since YAML is a superset of JSON), so JSON input will parse successfully in the YAML parser.

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