Is my JSON data sent to a server when I use this converter?

No. All conversion happens in your browser with JavaScript. Your JSON never leaves your device, so it is safe to convert private or sensitive data.

What happens if my JSON has a syntax error?

The tool checks your JSON strictly before converting. If there is an error, it shows a friendly message with the approximate line and column so you can fix it quickly.

Can I choose the indentation size of the YAML output?

Yes. You can select 2 spaces or 4 spaces of indentation before converting, and the YAML output will use your choice consistently.

How do I download the converted YAML file?

After conversion, click the Download button to save the result as a .yaml file, or use the Copy button to copy it to your clipboard.

JSON to YAML Converter

Paste your JSON below or upload a .json file. The tool converts it to clean YAML with your chosen indentation — everything happens in your browser.

Input JSON

Upload .json file

Indent size

YAML Output

How to use

Paste JSON into the input box, or upload a .json file.
Choose 2 or 4 spaces for indentation.
Click Convert to YAML. If the JSON is invalid, an error message shows the line and column.
Copy the result or download it as a .yaml file.

The converter handles objects, arrays, strings (quoted when needed), numbers, booleans, null values, and deeply nested structures. Nothing is uploaded to any server.

JSON to YAML Converter

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