JSON to YAML

Convert any valid JSON to clean, indented YAML — browser-based, no uploads.

No uploads — browser onlyInstant result

JSON Input

How to convert JSON to YAML

Paste your JSON into the input area (or use the sample provided).
Click Convert.
Copy the YAML output with the Copy button.

Privacy — processed in your browser

Conversion runs entirely in your browser using a built-in parser — no server call is made and no data is uploaded.

Frequently Asked Questions

Does the output YAML preserve order?

Yes — object keys are output in the same order as the input JSON (as of ES2015, JavaScript objects maintain insertion order for string keys).

Are strings automatically quoted?

Only when necessary. Strings that look like booleans, numbers, null, or that contain special YAML characters are double-quoted. Simple strings are output unquoted.

Can I convert back (YAML to JSON)?

Yes — use the YAML to JSON tool to go in the other direction.

Is there a size limit?

There is no hard limit — the only constraint is your browser's memory. For files over a few MB, conversion may take a second or two.