Converters

JSON to YAML Converter

Paste JSON, get clean block-style YAML — ready for config files, Helm charts, and CI pipelines.

Conversion runs locally in your browser. Nothing is uploaded, logged, or stored.

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How to use

  1. Paste your JSON into the input panel.
  2. Click Convert to serialize it as YAML with 2-space indentation.
  3. Copy or download the .yaml result into your project.

How the conversion works

The JSON document is parsed into native values and re-serialized as YAML: objects become indented mappings, arrays become - lists, and strings, numbers, booleans, and nulls map directly to YAML scalars. Strings that could be misread (like "true" or "1.0") are automatically quoted so the YAML parses back to exactly the same data.

Every JSON document has a valid YAML representation — YAML is a superset of JSON — so the conversion never loses information. Need the reverse direction? Use the YAML to JSON converter. Starting from XML instead? Go straight with the XML to YAML converter.

Examples

Kubernetes manifests

Convert a JSON deployment spec from an API export into YAML you can paste into your manifests directory.

CI pipeline config

Turn a JSON build configuration into the YAML format used by GitHub Actions, GitLab CI, and similar tools.

Frequently Asked Questions

Is my data uploaded anywhere?+
No. Parsing and serialization happen entirely in your browser.
Is the YAML guaranteed to parse back to the same data?+
Yes. Ambiguous scalars are quoted automatically, and the serializer follows the YAML 1.2 core schema.
Does it support nested objects and arrays?+
Yes, at any depth. Objects become indented mappings and arrays become dash lists, in the same order as the JSON.
What if my JSON is invalid?+
The parser error is shown above the output. Fix it with the JSON Formatter & Validator first.

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