Convert between YAML and JSON online 13 uses
Convert YAML to JSON or JSON to YAML instantly in your browser, covering mappings, sequences, and scalars.
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- Runs entirely in your browser — your data is never sent to a server
- Covers mappings, sequences, and both block and flow style
- Free, no account required
How it works
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1
Paste or enter the value you want to convert.
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2
Conversion happens instantly as you type.
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3
Review the result in the target format.
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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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