JSON ↔ YAML Converter
Convert between JSON and YAML — both directions, in your browser.
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How to use
Choose JSON→YAML or YAML→JSON, paste your input, and the converted output appears instantly. Copy it with one click.
About this tool
Paste JSON to get clean YAML, or paste YAML to get formatted JSON. Both directions validate the input and report the exact error if it's malformed. Everything runs locally in your browser — nothing is uploaded.
What you can use JSON ↔ YAML Converter for
- Convert a JSON config into YAML for a CI file
- Turn a YAML manifest into JSON for an API
- Reformat and validate a YAML document
- Compare the same data in both formats
Frequently asked questions
Does it go both ways?
Yes — convert JSON to YAML or YAML to JSON with a single toggle.
What happens with invalid input?
The input is validated and the exact parser error (with position) is shown, so you can fix it quickly.
Is my data uploaded?
No. Conversion runs entirely in your browser using a bundled YAML parser.
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