YAML to JSON Converter
Convert YAML to JSON format instantly.
How to Use the YAML to JSON Converter
Paste your YAML into the input box and click "Convert" to generate the equivalent JSON output. You can choose between 2-space indentation, 4-space indentation, or minified output.
What This Tool Does
- Convert — parses YAML and outputs formatted JSON
- Indent options — choose 2 spaces, 4 spaces, or minified for compact output
- Copy — copies the JSON result to your clipboard with one click
The tool runs entirely in your browser. No data is sent to any server. It supports key-value pairs, nested objects, arrays, strings, numbers, booleans and null values.
Frequently Asked Questions
What YAML features are supported?
The converter handles key-value pairs, nested objects (via indentation), arrays (using "- " syntax), quoted and unquoted strings, numbers, booleans (true/false), null values, comments and document separators (---).
Does this tool support multi-document YAML?
It processes the first document in your YAML input. If your YAML contains multiple documents separated by "---", only the first will be converted.
Is there a size limit for the YAML input?
There is no hard limit, but very large inputs (over 5 MB) may be slow to process in the browser since parsing runs client-side.
Does my YAML get uploaded to a server?
No. All conversion happens locally in your browser using JavaScript. Your data never leaves your device.
Can I convert JSON back to YAML?
This tool converts YAML to JSON only. For the reverse direction, use a dedicated JSON to YAML converter.
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