YAML to JSON Converter

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About this tool

Convert YAML to JSON or JSON to YAML with adjustable indentation. Everything runs locally in your browser — nothing is uploaded.

How to use
  1. Paste YAML or JSON into the input box.
  2. Choose the conversion direction and set the output indentation.
  3. Copy the result; invalid input is flagged inline.
Is my data uploaded anywhere?

No. Conversion happens entirely in your browser.

Can it handle complex nested data?

Yes. Nested objects and arrays are preserved across the conversion, with adjustable indentation for the output.