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YAML to JSON Converter
Paste YAML and get clean, formatted JSON — with clear error messages for invalid input. Runs entirely client-side.
YAML input
JSON output
🔒 This tool runs entirely in your browser. Your data is never uploaded.
Frequently asked questions
Does it validate my YAML?＋
Yes — invalid YAML produces a clear parse error, so it doubles as a quick YAML linter.
Is indentation handled correctly?＋
YAML relies on indentation, which the parser respects; the JSON output is then re-formatted with standard indentation.
Is my data uploaded?＋
No — conversion runs entirely in your browser.