convert

JSON to YAML

Convert JSON to clean, readable YAML for configs, Kubernetes manifests and CI files.

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Convert JSON to clean, readable YAML for configs, Kubernetes manifests and CI files.

About JSON to YAML

Paste or upload JSON and get the equivalent YAML, using the yaml library to produce block-style output with no forced line wrapping. YAML is a superset of JSON, so the data survives unchanged; only the syntax becomes easier for people to read and edit.

When it helps

  • Turning the output of kubectl get -o json into a manifest you can edit and commit.
  • Converting a JSON config into YAML for GitHub Actions, GitLab CI, Docker Compose or Helm values.
  • Rewriting an OpenAPI or JSON Schema document in YAML for easier code review.

Tips

  • Long strings are kept on one line rather than folded, which keeps diffs predictable.
  • Strings that YAML would otherwise read as another type, such as "true", "null", "0123" or "1.10", are quoted in the output so they stay strings.
  • JSON key order is preserved, so the YAML follows the same structure as your source file.

Good to know

Quick answers about json to yaml in your browser.

Yes for the data itself. Numbers, booleans, nulls, strings and nesting round-trip exactly. Only formatting, such as indentation, may differ.

No. JSON has no comments, so there is nothing to carry over. You can add # comments to the YAML afterwards.

Yes. There is no sign-up, no watermark and no limit on how many files you process.

No. Files are read and processed locally in your browser, so they never leave your device.

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Part of the JSON, YAML & XML Tools collection.