Convert JSON to YAML in your browser with readable, stable output. Invalid JSON shows a precise error, not a best-effort guess.
Paste a JSON value, then convert.
The YAML appears here after conversion.
Limit for uploaded files: 10 MB. Pasted text is not truncated by the tool — your browser’s memory is the ceiling.
Your file is never sent to a server. It is read and processed by your own browser, and the results are not stored.
YAML is the configuration format where JSON is not: comments, anchors, and human-friendly flow. Converting JSON to YAML gives you a file you can comment and edit, while remaining valid input for the same system that reads JSON.
The dump writes shared references as duplicate objects rather than as YAML aliases, which avoids alias cycles surprising a parser downstream.
JSON → YAML → JSON is safe for values that YAML core schema reproduces exactly, which covers objects, arrays, strings, numbers, booleans and null. Timestamps and other typed scalars may come back as strings.
No. JSON to YAML Converter runs in your browser, and the file is read there rather than sent to a server for processing. Our host still sees ordinary page-request metadata, which is described on the privacy page.
Yes, JSON to YAML Converter is free, with no paid tier, no account, and no watermark added to your output. The limits are technical rather than commercial: file size, page count and supported formats are listed on this page.
JSON to YAML Converter supports .json, .txt files up to 10MB directly in your browser.
Yes. The output is dumped with references disabled, so repeated objects are written out rather than emitted as YAML aliases that some consumers reject.
You get the parser’s error with an offset hint, not a silently half-converted file. Fix the JSON and convert again.
No. Key order is preserved from the JSON. Sorting is available on the YAML formatter if you want it explicitly.
No. Conversion runs in this tab. No network request contains your input.