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Convert between YAML and JSON online

Works offline · never uploaded 0 uses

Convert YAML to JSON or JSON to YAML instantly in your browser, covering mappings, sequences, and scalars.

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How it works

  1. 1

    Paste or enter the value you want to convert.

  2. 2

    Conversion happens instantly as you type.

  3. 3

    Review the result in the target format.

  4. 4

    Copy the result to your clipboard.

Why use this tool

Every dev utility, one place

Format, convert, encode, decode, and generate — no more juggling ten tabs.

100% private, always

Every tool runs in your browser — your code and data are never sent anywhere.

Works on any device

Runs on Windows, Mac, Linux, iOS, and Android — nothing to install.

Instant results

No queues, no build step — results update as you type.

Built to handle real data

Full Unicode support and RFC-compliant parsing, edge cases included.

Free, always

Free to use, with no rate limits, sign-up, or trial period.

Frequently asked questions

While YAML guarantees property ordering, standard JSON objects are inherently unordered by definition.

No, JSON does not support comments, so they are entirely stripped during the translation.

Specific tags (like timestamps) are generally coerced into standard ISO-8601 strings in the final JSON.

It typically only converts the very first document stream, ignoring anything after a --- separator.

The resulting data is automatically beautified with standard indentation for immediate readability.

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