Does it produce valid YAML?

Yes. js-yaml produces spec-compliant YAML 1.2 output, validated before download.

Are comments preserved?

No. JSON does not support comments, so none can be carried over to the YAML output.

Yes. Choose 2 or 4 spaces in the options panel.

JSON null becomes YAML null (displayed as '~' or 'null').

Yes. Use the paste tab for quick inline conversions.

DATA

Convert JSON to clean, human-readable YAML — perfect for configuration files, CI/CD pipelines, and Kubernetes manifests. Browser-only.

Files never uploadedInstant conversionNo account needed

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