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Paste valid JSON
Paste one JSON value: an object, array, string, number, boolean, or null. Nothing leaves this browser tab.
Developer Tools
JSON to YAML Converter
Convert valid JSON into explicit YAML locally, with text values quoted to preserve their meaning.
0 / 1,000,000 characters
YAML output
0 output characters
true or 2026-10-19 stay text when another YAML-aware tool reads them.Data handling
Storage and export controls
- Retention
- The tool's working state is kept only while this page is open. Inputs and results are not saved to persistent storage by Got A Tool.
- Export
- The tool may prepare a result after you run it. It downloads or copies it only when you choose that action.
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How it works
Convert valid JSON into explicit, reviewable YAML
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Convert locally
The tool parses JSON and writes a deterministic YAML copy with two-space indentation.
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Review and use it
Read the YAML, then copy it or download a .yaml file for the next step in your workflow.
Deliberate limits
One direction keeps the conversion clear.
This page converts JSON to YAML only. YAML permits anchors, custom tags, comments, and several ways to write the same value; accepting that syntax would require interpretation beyond a predictable format conversion. Every text key and value is quoted so YAML readers do not mistake text that looks like a date, number, or boolean for another type.
No uploads
Your JSON stays in the browser and no network request is needed for conversion.
Type-safe text
Text values are quoted to preserve their meaning when YAML is read later.
Nested data supported
Objects and arrays use consistent two-space indentation, including empty structures.
Review before use
The result is a text conversion. Validate it with the application that will consume it.
FAQ
Common questions
Does this convert YAML back to JSON?
No. This page deliberately converts valid JSON to YAML only, so it does not need to guess how to interpret YAML-only syntax.
Why are ordinary words quoted in the YAML output?
YAML can treat unquoted text such as true or date-looking values as a boolean or date. Quoting text keeps it a string.
Are pasted configuration values uploaded?
No. The JSON is parsed and converted locally in your browser. It is not uploaded, fetched, or saved by this tool.
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